diff --git a/.idea/kotlinTestDataPluginTestDataPaths.xml b/.idea/kotlinTestDataPluginTestDataPaths.xml
index c3bfa8fe563..e465cae20ee 100644
--- a/.idea/kotlinTestDataPluginTestDataPaths.xml
+++ b/.idea/kotlinTestDataPluginTestDataPaths.xml
@@ -8,7 +8,8 @@
         <option value="$PROJECT_DIR$/compiler/tests-spec/testData" />
         <option value="$PROJECT_DIR$/js/js.translator/testData" />
         <option value="$PROJECT_DIR$/plugins/parcelize/parcelize-compiler/testData" />
+        <option value="$PROJECT_DIR$/plugins/fir/fir-plugin-prototype/testData" />
       </array>
     </option>
   </component>
-</project>
\ No newline at end of file
+</project>