diff --git a/java_tools/configuration_definition/configuration_definition.iml b/java_tools/configuration_definition/configuration_definition.iml
index a9dc938f26..bebf62e35b 100644
--- a/java_tools/configuration_definition/configuration_definition.iml
+++ b/java_tools/configuration_definition/configuration_definition.iml
@@ -3,7 +3,6 @@
   <component name="NewModuleRootManager" inherit-compiler-output="true">
     <exclude-output />
     <content url="file://$MODULE_DIR$">
-      <sourceFolder url="file://$MODULE_DIR$" isTestSource="false" />
       <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
       <excludeFolder url="file://$MODULE_DIR$/build" />
       <excludeFolder url="file://$MODULE_DIR$/out" />