diff --git a/.idea/ant.xml b/.idea/ant.xml
index 17aad161c4f..13ffd116450 100644
--- a/.idea/ant.xml
+++ b/.idea/ant.xml
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="AntConfiguration">
-    <buildFile url="file://$PROJECT_DIR$/grammar/buildGrammarLexer.xml" />
     <buildFile url="file://$PROJECT_DIR$/compiler/frontend/buildLexer.xml" />
     <buildFile url="file://$PROJECT_DIR$/build.xml">
       <antCommandLine value="-J-XX:MaxPermSize=100m" />