diff --git a/src/OpenTK/OpenTK.csproj b/src/OpenTK/OpenTK.csproj
index 145e8355..aaa09898 100644
--- a/src/OpenTK/OpenTK.csproj
+++ b/src/OpenTK/OpenTK.csproj
@@ -807,8 +807,8 @@
   <Target Name="AfterBuild">
     <Exec Command="$(OutputPath)..\..\..\Generator.Rewrite\bin\Debug\Rewrite.exe $(OutputPath)OpenTK.dll ..\..\OpenTK.snk -debug" Condition="$(OS) == 'Windows_NT' and $(Configuration) == 'Debug'" />
     <Exec Command="$(OutputPath)..\..\..\Generator.Rewrite\bin\Release\Rewrite.exe $(OutputPath)OpenTK.dll ..\..\OpenTK.snk" Condition="$(OS) == 'Windows_NT' and $(Configuration) == 'Release'" />
-    <Exec WorkingDirectory="$(SolutionDir)src/Generator.Rewrite/bin/Debug/" Command="mono ./Rewrite.exe $(SolutionDir)src/OpenTK/bin/Debug/OpenTK.dll $(SolutionDir)OpenTK.snk -debug" Condition="$(OS) != 'Windows_NT' and $(Configuration) == 'Debug'" />
-    <Exec WorkingDirectory="$(SolutionDir)src/Generator.Rewrite/bin/Release" Command="mono ./Rewrite.exe $(SolutionDir)src/OpenTK/bin/Release/OpenTK.dll $(SolutionDir)OpenTK.snk" Condition="$(OS) != 'Windows_NT' and $(Configuration) == 'Release'" />
+    <Exec Command="mono $(OutputPath)../../../Generator.Rewrite/bin/Debug/Rewrite.exe $(OutputPath)OpenTK.dll ../../OpenTK.snk -debug" Condition="$(OS) != 'Windows_NT' and $(Configuration) == 'Debug'" />
+    <Exec Command="mono $(OutputPath)../../../Generator.Rewrite/bin/Release/Rewrite.exe $(OutputPath)OpenTK.dll ../../OpenTK.snk" Condition="$(OS) != 'Windows_NT' and $(Configuration) == 'Release'" />
   </Target>
   <ProjectExtensions>
     <MonoDevelop>
@@ -824,4 +824,4 @@
       </Properties>
     </MonoDevelop>
   </ProjectExtensions>
-</Project>
\ No newline at end of file
+</Project>