diff --git a/runprebuild.bat b/runprebuild.bat
index e8cd98c35f..7eb3c5fa06 100755
--- a/runprebuild.bat
+++ b/runprebuild.bat
@@ -1,5 +1,7 @@
 @echo OFF
 
+copy bin\System.Drawing.Common.dll.win bin\System.Drawing.Common.dll
+
 dotnet bin\prebuild.dll /target vs2022 /targetframework net6_0 /excludedir = "obj | bin" /file prebuild.xml
 
     @echo Creating compile.bat
@@ -8,7 +10,7 @@ rem To compile in debug mode
 rem To compile in release mode comment line (add rem to start) above and uncomment next (remove rem)
 rem    @echo dotnet build --configuration Debug OpenSim.sln > compile.bat
 :done
-copy bin\System.Drawing.Common.dll.win bin\System.Drawing.Common.dll
+
 
 if exist "bin\addin-db-002" (
 	del /F/Q/S bin\addin-db-002 > NUL
diff --git a/runprebuild.sh b/runprebuild.sh
index 2c1d64a8a5..5f724617c2 100755
--- a/runprebuild.sh
+++ b/runprebuild.sh
@@ -18,10 +18,10 @@ case "$1" in
 
   *)
 
+    cp bin/System.Drawing.Common.dll.linux bin/System.Drawing.Common.dll
     dotnet bin/prebuild.dll /target vs2022 /targetframework net6_0 /excludedir = "obj | bin" /file prebuild.xml
     echo "dotnet build -c Release OpenSim.sln" > compile.sh
     chmod +x compile.sh
-	cp bin/System.Drawing.Common.dll.linux bin/System.Drawing.Common.dll
 
   ;;