diff --git a/internal/buildengine/build_java.go b/internal/buildengine/build_java.go
index 879c8af4f8..6909ef348e 100644
--- a/internal/buildengine/build_java.go
+++ b/internal/buildengine/build_java.go
@@ -24,7 +24,6 @@ func buildJavaModule(ctx context.Context, module Module) error {
 	}
 	logger.Infof("Using build command '%s'", module.Config.Build)
 	command := exec.Command(ctx, log.Debug, module.Config.Dir, "bash", "-c", module.Config.Build)
-	command.Env = append(command.Env, "FTL_MODULE_NAME="+module.Config.Module)
 	err := command.RunBuffered(ctx)
 	if err != nil {
 		return fmt.Errorf("failed to build module %q: %w", module.Config.Module, err)
diff --git a/jvm-runtime/ftl-runtime/common/deployment/pom.xml b/jvm-runtime/ftl-runtime/common/deployment/pom.xml
index 766da8745e..0ba449822e 100644
--- a/jvm-runtime/ftl-runtime/common/deployment/pom.xml
+++ b/jvm-runtime/ftl-runtime/common/deployment/pom.xml
@@ -31,12 +31,15 @@
             <groupId>io.quarkus</groupId>
             <artifactId>quarkus-credentials-deployment</artifactId>
         </dependency>
-
         <dependency>
             <groupId>xyz.block.ftl</groupId>
             <artifactId>ftl-jvm-runtime</artifactId>
             <version>${project.version}</version>
         </dependency>
+        <dependency>
+            <groupId>org.tomlj</groupId>
+            <artifactId>tomlj</artifactId>
+        </dependency>
         <dependency>
             <groupId>io.quarkus</groupId>
             <artifactId>quarkus-junit5-internal</artifactId>
diff --git a/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/FTLBuildTimeConfig.java b/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/FTLBuildTimeConfig.java
deleted file mode 100644
index 174014bb04..0000000000
--- a/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/FTLBuildTimeConfig.java
+++ /dev/null
@@ -1,16 +0,0 @@
-package xyz.block.ftl.deployment;
-
-import java.util.Optional;
-
-import io.quarkus.runtime.annotations.ConfigItem;
-import io.quarkus.runtime.annotations.ConfigRoot;
-
-@ConfigRoot(name = "ftl")
-public class FTLBuildTimeConfig {
-
-    /**
-     * The FTL module name, should be set automatically during build
-     */
-    @ConfigItem
-    public Optional<String> moduleName;
-}
diff --git a/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/FtlProcessor.java b/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/FtlProcessor.java
index 37eed9da1e..70f98075a4 100644
--- a/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/FtlProcessor.java
+++ b/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/FtlProcessor.java
@@ -52,10 +52,8 @@
 import io.quarkus.deployment.builditem.ApplicationInfoBuildItem;
 import io.quarkus.deployment.builditem.ApplicationStartBuildItem;
 import io.quarkus.deployment.builditem.CombinedIndexBuildItem;
-import io.quarkus.deployment.builditem.FeatureBuildItem;
 import io.quarkus.deployment.builditem.GeneratedResourceBuildItem;
 import io.quarkus.deployment.builditem.LaunchModeBuildItem;
-import io.quarkus.deployment.builditem.RunTimeConfigBuilderBuildItem;
 import io.quarkus.deployment.builditem.ShutdownContextBuildItem;
 import io.quarkus.deployment.builditem.SystemPropertyBuildItem;
 import io.quarkus.deployment.builditem.nativeimage.ReflectiveClassBuildItem;
@@ -91,7 +89,6 @@
 import xyz.block.ftl.runtime.builtin.HttpRequest;
 import xyz.block.ftl.runtime.builtin.HttpResponse;
 import xyz.block.ftl.runtime.config.FTLConfigSource;
-import xyz.block.ftl.runtime.config.FTLConfigSourceFactoryBuilder;
 import xyz.block.ftl.v1.CallRequest;
 import xyz.block.ftl.v1.schema.Any;
 import xyz.block.ftl.v1.schema.Array;
@@ -124,7 +121,6 @@ class FtlProcessor {
     private static final Logger log = Logger.getLogger(FtlProcessor.class);
 
     private static final String SCHEMA_OUT = "schema.pb";
-    private static final String FEATURE = "ftl-java-runtime";
     public static final DotName EXPORT = DotName.createSimple(Export.class);
     public static final DotName VERB = DotName.createSimple(Verb.class);
     public static final DotName CRON = DotName.createSimple(Cron.class);
@@ -141,21 +137,6 @@ class FtlProcessor {
     public static final DotName NOT_NULL = DotName.createSimple(NotNull.class);
     public static final DotName JSON_NODE = DotName.createSimple(JsonNode.class.getName());
 
-    @BuildStep
-    ModuleNameBuildItem moduleName(ApplicationInfoBuildItem applicationInfoBuildItem, FTLBuildTimeConfig buildTimeConfig) {
-        return new ModuleNameBuildItem(buildTimeConfig.moduleName.orElse(applicationInfoBuildItem.getName()));
-    }
-
-    @BuildStep
-    RunTimeConfigBuilderBuildItem runTimeConfigBuilderBuildItem() {
-        return new RunTimeConfigBuilderBuildItem(FTLConfigSourceFactoryBuilder.class.getName());
-    }
-
-    @BuildStep
-    FeatureBuildItem feature() {
-        return new FeatureBuildItem(FEATURE);
-    }
-
     @BuildStep
     BindableServiceBuildItem verbService() {
         var ret = new BindableServiceBuildItem(DotName.createSimple(VerbHandler.class));
diff --git a/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/ModuleProcessor.java b/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/ModuleProcessor.java
new file mode 100644
index 0000000000..21197e4e49
--- /dev/null
+++ b/jvm-runtime/ftl-runtime/common/deployment/src/main/java/xyz/block/ftl/deployment/ModuleProcessor.java
@@ -0,0 +1,67 @@
+package xyz.block.ftl.deployment;
+
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.Objects;
+import java.util.stream.Collectors;
+
+import org.jboss.logging.Logger;
+import org.tomlj.Toml;
+import org.tomlj.TomlParseResult;
+
+import io.quarkus.deployment.annotations.BuildStep;
+import io.quarkus.deployment.builditem.ApplicationArchivesBuildItem;
+import io.quarkus.deployment.builditem.ApplicationInfoBuildItem;
+import io.quarkus.deployment.builditem.FeatureBuildItem;
+import io.quarkus.deployment.builditem.RunTimeConfigBuilderBuildItem;
+import xyz.block.ftl.runtime.config.FTLConfigSourceFactoryBuilder;
+
+public class ModuleProcessor {
+
+    private static final Logger log = Logger.getLogger(ModuleProcessor.class);
+
+    private static final String FEATURE = "ftl-java-runtime";
+
+    @BuildStep
+    ModuleNameBuildItem moduleName(ApplicationInfoBuildItem applicationInfoBuildItem,
+            ApplicationArchivesBuildItem archivesBuildItem) throws IOException {
+        for (var root : archivesBuildItem.getRootArchive().getRootDirectories()) {
+            Path source = root;
+            for (;;) {
+                var toml = source.resolve("ftl.toml");
+                if (Files.exists(toml)) {
+                    TomlParseResult result = Toml.parse(toml);
+                    if (result.hasErrors()) {
+                        throw new RuntimeException("Failed to parse " + toml + " "
+                                + result.errors().stream().map(Objects::toString).collect(Collectors.joining(", ")));
+                    }
+
+                    String value = result.getString("module");
+                    if (value != null) {
+                        return new ModuleNameBuildItem(value);
+                    } else {
+                        log.errorf("module name not found in %s", toml);
+                    }
+                }
+                if (source.getParent() == null) {
+                    break;
+                } else {
+                    source = source.getParent();
+                }
+            }
+        }
+
+        return new ModuleNameBuildItem(applicationInfoBuildItem.getName());
+    }
+
+    @BuildStep
+    RunTimeConfigBuilderBuildItem runTimeConfigBuilderBuildItem() {
+        return new RunTimeConfigBuilderBuildItem(FTLConfigSourceFactoryBuilder.class.getName());
+    }
+
+    @BuildStep
+    FeatureBuildItem feature() {
+        return new FeatureBuildItem(FEATURE);
+    }
+}
diff --git a/jvm-runtime/ftl-runtime/pom.xml b/jvm-runtime/ftl-runtime/pom.xml
index 93380fc60f..c910731441 100644
--- a/jvm-runtime/ftl-runtime/pom.xml
+++ b/jvm-runtime/ftl-runtime/pom.xml
@@ -29,6 +29,7 @@
         <version.formatter.plugin>2.24.1</version.formatter.plugin>
         <version.impsort.plugin>1.11.0</version.impsort.plugin>
         <kotlinpoet.version>1.18.1</kotlinpoet.version>
+        <tomlj.version>1.1.1</tomlj.version>
     </properties>
 
     <dependencyManagement>
@@ -72,6 +73,11 @@
                 <type>pom</type>
                 <scope>import</scope>
             </dependency>
+            <dependency>
+                <groupId>org.tomlj</groupId>
+                <artifactId>tomlj</artifactId>
+                <version>${tomlj.version}</version>
+            </dependency>
 
             <dependency>
                 <groupId>com.squareup</groupId>
diff --git a/jvm-runtime/testdata/java/verbs/pom.xml b/jvm-runtime/testdata/java/verbs/pom.xml
index 9c9231cd8d..17cc01f697 100644
--- a/jvm-runtime/testdata/java/verbs/pom.xml
+++ b/jvm-runtime/testdata/java/verbs/pom.xml
@@ -2,7 +2,7 @@
 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <groupId>xyz.block.ftl.examples</groupId>
-    <artifactId>verbs</artifactId>
+    <artifactId>verbs-module</artifactId>
     <version>1.0-SNAPSHOT</version>
 
     <parent>