diff --git a/installer/StartService.bat b/installer/StartService.bat
index 6c575e76..ac3bb4bb 100644
--- a/installer/StartService.bat
+++ b/installer/StartService.bat
@@ -11,7 +11,7 @@ if defined ISCS6000_OS (
     set OS_DEFINE=%ISCS6000_OS%
 )
 
-OS_DEFINE=windows10
+set  OS_DEFINE=windows10
 
 if exist "%scriptPath%\..\product\%OS_DEFINE%_debug\" (
     set SETUP_DEBUG_RELEASE=debug