diff --git a/dev-tools/idea/lucene/test-framework/lucene-test-framework.iml b/dev-tools/idea/lucene/test-framework/lucene-test-framework.iml
index f46df7d683c..91e0daea26f 100644
--- a/dev-tools/idea/lucene/test-framework/lucene-test-framework.iml
+++ b/dev-tools/idea/lucene/test-framework/lucene-test-framework.iml
@@ -7,6 +7,7 @@
     <content url="file://$MODULE_DIR$">
       <sourceFolder url="file://$MODULE_DIR$/src/resources" type="java-resource" />
       <sourceFolder url="file://$MODULE_DIR$/src/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test" isTestSource="true" />
     </content>
     <orderEntry type="inheritedJdk" />
     <orderEntry type="sourceFolder" forTests="false" />