diff --git a/.idea/compiler.xml b/.idea/compiler.xml
index c8eeb21b2179..a6fee280c051 100644
--- a/.idea/compiler.xml
+++ b/.idea/compiler.xml
@@ -9,6 +9,7 @@
       <file url="file://$PROJECT_DIR$/jps/jps-builders/src/org/jetbrains/jps/incremental/java/OptimizedFileManager.java" />
       <file url="file://$PROJECT_DIR$/jps/jps-builders/src/org/jetbrains/jps/javac/OptimizedFileManager.java" />
       <file url="file://$PROJECT_DIR$/jps/jps-builders/src/org/jetbrains/jps/javac/OptimizedFileManager17.java" />
+      <file url="file://$PROJECT_DIR$/java/java-tests/testSrc/com/intellij/index/IndexTestGenerator.scala" />
     </excludeFromCompile>
     <resourceExtensions>
       <entry name=".+\.(properties|xml|html|dtd|tld)" />