diff --git a/test-log.xml b/test-log.xml
index 3a0a6bf82e42..c21e60b07afd 100644
--- a/test-log.xml
+++ b/test-log.xml
@@ -20,6 +20,7 @@
 
   <appender name="FILE" class="org.apache.log4j.FileAppender">
     <param name="file" value="$LOG_DIR$/idea.log"/>
+    <param name="append" value="false"/>
     <layout class="org.apache.log4j.PatternLayout">
       <param name="ConversionPattern" value="%d [%7r] %6p - %30.30c - %m \n"/>
     </layout>