diff --git a/internal/buildengine/languageplugin/go_plugin_integration_test.go b/internal/buildengine/languageplugin/go_plugin_integration_test.go
index eec313fabe..5683c8faa9 100644
--- a/internal/buildengine/languageplugin/go_plugin_integration_test.go
+++ b/internal/buildengine/languageplugin/go_plugin_integration_test.go
@@ -14,7 +14,7 @@ import (
 func TestGoBuildClearsBuildDir(t *testing.T) {
 	file := "./another/.ftl/test-clear-build.tmp"
 	in.Run(t,
-		in.WithTestDataDir("testdata"),
+		in.WithTestDataDir("../testdata"),
 		in.CopyModule("another"),
 		in.Build("another"),
 		in.WriteFile(file, []byte{1}),
@@ -26,7 +26,7 @@ func TestGoBuildClearsBuildDir(t *testing.T) {
 
 func TestExternalType(t *testing.T) {
 	in.Run(t,
-		in.WithTestDataDir("testdata"),
+		in.WithTestDataDir("../testdata"),
 		in.CopyModule("external"),
 		in.ExpectError(in.Build("external"),
 			`unsupported type "time.Month" for field "Month"`,
@@ -43,7 +43,7 @@ func TestGeneratedTypeRegistry(t *testing.T) {
 	file := "other/.ftl/go/main/main.go"
 
 	in.Run(t,
-		in.WithTestDataDir("testdata"),
+		in.WithTestDataDir("../testdata"),
 		// Deploy dependency
 		in.CopyModule("another"),
 		in.Deploy("another"),