diff --git a/Source/Build.UpdateVersion/Build.UpdateVersion.csproj b/Source/Build.UpdateVersion/Build.UpdateVersion.csproj
index 7d328718..3da9ca63 100644
--- a/Source/Build.UpdateVersion/Build.UpdateVersion.csproj
+++ b/Source/Build.UpdateVersion/Build.UpdateVersion.csproj
@@ -40,6 +40,7 @@
     <Delete Files="..\..\Version.txt" />
   </Target>
   <Target Name="AfterBuild">
-    <Exec Command="$(OutputPath)\Build.UpdateVersion.exe" />
+    <Exec Command="$(OutputPath)\Build.UpdateVersion.exe" Condition="$(OS) == 'Windows_NT'" />
+    <Exec Command="mono $(OutputPath)\Build.UpdateVersion.exe" Condition="$(OS) != 'Windows_NT'" />
   </Target>
-</Project>
\ No newline at end of file
+</Project>