diff --git a/tools/mkkconfig.bat b/tools/mkkconfig.bat
index 69082e8c5..cc58b8527 100755
--- a/tools/mkkconfig.bat
+++ b/tools/mkkconfig.bat
@@ -35,7 +35,7 @@ REM
 
 REM Parse command line arguments
 
-SET menu=
+SET menu=""
 SET kconfig=Kconfig
 
 :ArgLoop
@@ -81,7 +81,7 @@ Echo # see the file kconfig-language.txt in the NuttX tools repository. >> %kcon
 Echo # >> %kconfig%
 Echo # This file is autogenerated, do not edit. >> %kconfig%
 Echo # >> %kconfig%
-Echo >> %kconfig%
+Echo[ >> %kconfig%
 
 IF %menu% NEQ "" (
   Echo menu "%menu%" >> %kconfig%