diff --git a/idea/kotlin-gradle-tooling/build.gradle.kts b/idea/kotlin-gradle-tooling/build.gradle.kts
index 2d452504f39..e05aa825ec3 100644
--- a/idea/kotlin-gradle-tooling/build.gradle.kts
+++ b/idea/kotlin-gradle-tooling/build.gradle.kts
@@ -3,6 +3,8 @@ description = "Kotlin Gradle Tooling support"
 
 apply { plugin("kotlin") }
 
+jvmTarget = "1.6"
+
 dependencies {
     compile(projectDist(":kotlin-stdlib"))
     compile(project(":compiler:cli-common"))
diff --git a/plugins/android-extensions/android-extensions-idea/build.gradle.kts b/plugins/android-extensions/android-extensions-idea/build.gradle.kts
index be1820ad338..a465986cc06 100644
--- a/plugins/android-extensions/android-extensions-idea/build.gradle.kts
+++ b/plugins/android-extensions/android-extensions-idea/build.gradle.kts
@@ -3,6 +3,8 @@ description = "Kotlin Android Extensions IDEA"
 
 apply { plugin("kotlin") }
 
+jvmTarget = "1.6"
+
 dependencies {
     compile(project(":compiler:util"))
     compile(project(":compiler:light-classes"))
diff --git a/plugins/kapt3/kapt3-idea/build.gradle.kts b/plugins/kapt3/kapt3-idea/build.gradle.kts
index 8ff5553b411..e824a90a41d 100644
--- a/plugins/kapt3/kapt3-idea/build.gradle.kts
+++ b/plugins/kapt3/kapt3-idea/build.gradle.kts
@@ -1,6 +1,8 @@
 
 apply { plugin("kotlin") }
 
+jvmTarget = "1.6"
+
 dependencies {
     compile(projectDist(":kotlin-stdlib"))
     compile(project(":compiler:frontend"))