diff --git a/build.gradle b/build.gradle
index a787c74bf4..61ce33bc30 100644
--- a/build.gradle
+++ b/build.gradle
@@ -144,12 +144,10 @@ ext.rustTargets += ext.nativeRustTarget
 subprojects {
     apply plugin: 'maven-publish'
 
-
     // Kotlin settings applicable to all modules.
     afterEvaluate {
         tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).all {
             kotlinOptions.allWarningsAsErrors = true
-            kotlin.jvmToolchain(rootProject.ext.build.jvmTargetCompatibility)
         }
     }
 
diff --git a/glean-core/android-native/build.gradle b/glean-core/android-native/build.gradle
index fe95a840da..8a4ada67e1 100644
--- a/glean-core/android-native/build.gradle
+++ b/glean-core/android-native/build.gradle
@@ -8,8 +8,13 @@
 import groovy.json.JsonOutput
 
 apply plugin: 'com.android.library'
+apply plugin: 'kotlin-android'
 apply plugin: 'org.mozilla.rust-android-gradle.rust-android'
 
+kotlin {
+    jvmToolchain(rootProject.ext.build.jvmTargetCompatibility)
+}
+
 android {
     namespace "mozilla.telemetry.glean_native"
 
diff --git a/glean-core/android/build.gradle b/glean-core/android/build.gradle
index 6a513a8f1d..1099134669 100644
--- a/glean-core/android/build.gradle
+++ b/glean-core/android/build.gradle
@@ -27,6 +27,10 @@ File GLEAN_PING_SCHEMA_PATH = file("$rootDir/glean.1.schema.json")
 ext.allowGleanInternal = true
 ext.gleanNamespace = "mozilla.telemetry.glean"
 
+kotlin {
+    jvmToolchain(rootProject.ext.build.jvmTargetCompatibility)
+}
+
 android {
     compileSdkVersion rootProject.ext.build.compileSdkVersion
     namespace "mozilla.telemetry.glean"
diff --git a/samples/android/app/build.gradle b/samples/android/app/build.gradle
index 5d8bae83c2..2f8a9991fb 100644
--- a/samples/android/app/build.gradle
+++ b/samples/android/app/build.gradle
@@ -9,6 +9,10 @@ plugins {
 apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 
+kotlin {
+    jvmToolchain(rootProject.ext.build.jvmTargetCompatibility)
+}
+
 android {
     namespace "org.mozilla.samples.gleancore"
     compileSdkVersion rootProject.ext.build.compileSdkVersion