diff --git a/utils_dev/RUN_build.bat b/utils_dev/RUN_build.bat
index 8b7af3e5e4..5026fc1fa7 100644
--- a/utils_dev/RUN_build.bat
+++ b/utils_dev/RUN_build.bat
@@ -15,7 +15,7 @@
 @SET ANT_OPTS=-Xms128m -Xmx512m
 
 @echo Cleanup ...
-"%JAVA_HOME%\bin\java" %ANT_OPTS% -classpath %ANT_CLASSPATH% -Dant.home="." org.apache.tools.ant.Main clean
+@"%JAVA_HOME%\bin\java" %ANT_OPTS% -classpath %ANT_CLASSPATH% -Dant.home="." org.apache.tools.ant.Main clean
 
 @echo Building ...
 @"%JAVA_HOME%\bin\java" %ANT_OPTS% -classpath %ANT_CLASSPATH% -Dant.home="." org.apache.tools.ant.Main -logger org.apache.tools.ant.listener.MailLogger complete