diff --git a/java/compiler/instrumentation-util-8/intellij.java.compiler.instrumentationUtil.java8.iml b/java/compiler/instrumentation-util-8/intellij.java.compiler.instrumentationUtil.java8.iml
index bc14fba78344..d0c58d098d4c 100644
--- a/java/compiler/instrumentation-util-8/intellij.java.compiler.instrumentationUtil.java8.iml
+++ b/java/compiler/instrumentation-util-8/intellij.java.compiler.instrumentationUtil.java8.iml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
diff --git a/plugins/junit5_rt/intellij.junit.v5.rt.iml b/plugins/junit5_rt/intellij.junit.v5.rt.iml
index 41ae3ab6d9d1..6c8e79ddc543 100644
--- a/plugins/junit5_rt/intellij.junit.v5.rt.iml
+++ b/plugins/junit5_rt/intellij.junit.v5.rt.iml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
diff --git a/plugins/xslt-debugger/engine/impl/intellij.xslt.debugger.impl.rt.iml b/plugins/xslt-debugger/engine/impl/intellij.xslt.debugger.impl.rt.iml
index dbe095a85551..911b6754d0b7 100644
--- a/plugins/xslt-debugger/engine/impl/intellij.xslt.debugger.impl.rt.iml
+++ b/plugins/xslt-debugger/engine/impl/intellij.xslt.debugger.impl.rt.iml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <module type="JAVA_MODULE" version="4">
-  <component name="NewModuleRootManager" inherit-compiler-output="true">
+  <component name="NewModuleRootManager" LANGUAGE_LEVEL="JDK_1_8" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />