diff --git a/idea_runner/README.md b/idea_runner/README.md
index bc1b0f32d2e..d538ae68c00 100644
--- a/idea_runner/README.md
+++ b/idea_runner/README.md
@@ -1,2 +1,3 @@
 This module exists for the sole purpose of providing the classpath for the IDEA run configuration.
-This run configuration takes a plugin from the KotlinPlugin artifact instead of the project's 'out' directory, which makes it possible for our plugin to depend on other plugins such as JUnit plugin.
\ No newline at end of file
+This run configuration takes a plugin from the KotlinPlugin artifact instead of the project's 'out' directory, which makes it possible for our plugin to depend on other plugins such as JUnit plugin.
+If you want to debug some patch to IDEA, you can add copy of IDEA class into this module and modify.
\ No newline at end of file
diff --git a/idea_runner/idea_runner.iml b/idea_runner/idea_runner.iml
index 64445d9a5db..dddac5aaaeb 100644
--- a/idea_runner/idea_runner.iml
+++ b/idea_runner/idea_runner.iml
@@ -2,10 +2,12 @@
 <module type="JAVA_MODULE" version="4">
   <component name="NewModuleRootManager" inherit-compiler-output="true">
     <exclude-output />
-    <content url="file://$MODULE_DIR$" />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$" isTestSource="false" />
+    </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />
-    <orderEntry type="library" scope="RUNTIME" name="idea-full" level="project" />
+    <orderEntry type="library" name="idea-full" level="project" />
     <orderEntry type="module" module-name="idea" scope="PROVIDED" />
   </component>
 </module>