diff --git a/plugins/allopen/allopen-ide/build.gradle.kts b/plugins/allopen/allopen-ide/build.gradle.kts
index 58124f0097f..5eef4886657 100644
--- a/plugins/allopen/allopen-ide/build.gradle.kts
+++ b/plugins/allopen/allopen-ide/build.gradle.kts
@@ -3,6 +3,8 @@ description = "Kotlin AllOpen IDEA Plugin"
 
 apply { plugin("kotlin") }
 
+jvmTarget = "1.6"
+
 dependencies {
     compile(project(":kotlin-allopen-compiler-plugin"))
     compile(project(":compiler:util"))
diff --git a/plugins/annotation-based-compiler-plugins-ide-support/build.gradle.kts b/plugins/annotation-based-compiler-plugins-ide-support/build.gradle.kts
index f9919e015aa..65790228530 100644
--- a/plugins/annotation-based-compiler-plugins-ide-support/build.gradle.kts
+++ b/plugins/annotation-based-compiler-plugins-ide-support/build.gradle.kts
@@ -1,6 +1,8 @@
 
 apply { plugin("kotlin") }
 
+jvmTarget = "1.6"
+
 dependencies {
     compile(project(":compiler:util"))
     compile(project(":compiler:frontend"))
diff --git a/plugins/noarg/noarg-ide/build.gradle.kts b/plugins/noarg/noarg-ide/build.gradle.kts
index 093d5707169..bcb218b4e2f 100644
--- a/plugins/noarg/noarg-ide/build.gradle.kts
+++ b/plugins/noarg/noarg-ide/build.gradle.kts
@@ -3,6 +3,8 @@ description = "Kotlin NoArg IDEA Plugin"
 
 apply { plugin("kotlin") }
 
+jvmTarget = "1.6"
+
 dependencies {
     compile(project(":kotlin-noarg-compiler-plugin"))
     compile(project(":compiler:util"))
diff --git a/plugins/sam-with-receiver/sam-with-receiver-ide/build.gradle.kts b/plugins/sam-with-receiver/sam-with-receiver-ide/build.gradle.kts
index b0df46bd7d2..22b4e4bfdf8 100644
--- a/plugins/sam-with-receiver/sam-with-receiver-ide/build.gradle.kts
+++ b/plugins/sam-with-receiver/sam-with-receiver-ide/build.gradle.kts
@@ -3,6 +3,8 @@ description = "Kotlin SamWithReceiver IDEA Plugin"
 
 apply { plugin("kotlin") }
 
+jvmTarget = "1.6"
+
 dependencies {
     compile(project(":kotlin-sam-with-receiver-compiler-plugin"))
     compile(project(":plugins:annotation-based-compiler-plugins-ide-support"))