diff --git a/dist-material/bin/webappService.bat b/dist-material/bin/webappService.bat
index dbc324517..a1ca98c06 100644
--- a/dist-material/bin/webappService.bat
+++ b/dist-material/bin/webappService.bat
@@ -22,7 +22,7 @@ set WEBAPP_HOME=%~dp0%..
 set JARPATH=%WEBAPP_HOME%\webapp
 set WEBAPP_LOG_DIR=%WEBAPP_HOME%\logs
 
-if exist "%WEBAPP_LOG_DIR%" (
+if not exist "%WEBAPP_LOG_DIR%" (
     mkdir "%WEBAPP_LOG_DIR%"
 )