diff --git a/utils/PostBuild.bat b/utils/PostBuild.bat
index eda8dc2a2..31d396f00 100644
--- a/utils/PostBuild.bat
+++ b/utils/PostBuild.bat
@@ -1,8 +1,10 @@
 @echo off
-FOR /f "tokens=1,2*" %%E in ('reg query "HKEY_CURRENT_USER\Software\Valve\Steam"') DO (
-	IF "%%E"=="SteamPath" (
-		set SteamPath=%%G
-	)
+IF "%SteamPath%" EQU "" (
+    FOR /f "tokens=1,2*" %%E in ('reg query "HKEY_CURRENT_USER\Software\Valve\Steam"') DO (
+        IF "%%E"=="SteamPath" (
+            set SteamPath=%%G
+        )
+    )
 )
 IF "%SteamPath%" NEQ "" (
 	XCOPY /R /Y /V %1 "%SteamPath%\SteamApps\common\Fortress Forever\FortressForever\bin"