diff --git a/.idea/ant.xml b/.idea/ant.xml
index ed038767c6b..91a520952bd 100644
--- a/.idea/ant.xml
+++ b/.idea/ant.xml
@@ -1,47 +1,13 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="AntConfiguration">
-    <defaultAnt bundledAnt="true" />
-    <buildFile url="file://$PROJECT_DIR$/grammar/buildGrammarLexer.xml">
-      <additionalClassPath />
-      <antReference projectDefault="true" />
-      <customJdkName value="" />
-      <maximumHeapSize value="128" />
-      <maximumStackSize value="2" />
-      <properties />
-    </buildFile>
-    <buildFile url="file://$PROJECT_DIR$/compiler/frontend/buildLexer.xml">
-      <additionalClassPath />
-      <antReference projectDefault="true" />
-      <customJdkName value="" />
-      <maximumHeapSize value="128" />
-      <maximumStackSize value="2" />
-      <properties />
-    </buildFile>
+    <buildFile url="file://$PROJECT_DIR$/grammar/buildGrammarLexer.xml" />
+    <buildFile url="file://$PROJECT_DIR$/compiler/frontend/buildLexer.xml" />
     <buildFile url="file://$PROJECT_DIR$/build.xml">
-      <additionalClassPath />
-      <antReference projectDefault="true" />
-      <customJdkName value="" />
       <maximumHeapSize value="512" />
-      <maximumStackSize value="2" />
-      <properties />
-    </buildFile>
-    <buildFile url="file://$PROJECT_DIR$/update_dependencies.xml">
-      <additionalClassPath />
-      <antReference projectDefault="true" />
-      <customJdkName value="" />
-      <maximumHeapSize value="128" />
-      <maximumStackSize value="2" />
-      <properties />
-    </buildFile>
-    <buildFile url="file://$PROJECT_DIR$/TeamCityBuild.xml">
-      <additionalClassPath />
-      <antReference projectDefault="true" />
-      <customJdkName value="" />
-      <maximumHeapSize value="128" />
-      <maximumStackSize value="2" />
-      <properties />
     </buildFile>
+    <buildFile url="file://$PROJECT_DIR$/update_dependencies.xml" />
+    <buildFile url="file://$PROJECT_DIR$/TeamCityBuild.xml" />
   </component>
 </project>