diff --git a/legacy/bin/build.bat b/legacy/bin/build.bat
index 049154ce92..e231c6b920 100644
--- a/legacy/bin/build.bat
+++ b/legacy/bin/build.bat
@@ -7,7 +7,6 @@ set DME_LOCATION=%DME_FOLDER%%PROJECTNAME%.dme
 set MDME_LOCATION=%DME_FOLDER%%PROJECTNAME%.mdme
 
 @del %MDME_LOCATION% >nul 2>nul
-if defined MAPROTATE set MAPFILE=%MAPROTATE%
 if not defined MAPFILE goto BUILD
 
 echo #define MAP_OVERRIDE >>%MDME_LOCATION%