diff --git a/runprebuild.bat b/runprebuild.bat
index dc840b4f36..e8cd98c35f 100755
--- a/runprebuild.bat
+++ b/runprebuild.bat
@@ -8,6 +8,8 @@ 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
 	rmdir /Q/S bin\addin-db-002