diff --git a/src/libse/LibSE.csproj b/src/libse/LibSE.csproj
index cc9815ee5..5f8deb156 100644
--- a/src/libse/LibSE.csproj
+++ b/src/libse/LibSE.csproj
@@ -37,7 +37,8 @@
 	</ItemGroup>
 
 	<Target Name="InvokeBuildHelpers" BeforeTargets="BeforeCompile;CoreCompile">
-		<Exec Command="%22$(SolutionDir)build_helpers.bat%22 rev %22$(ConfigurationName)%22" />
+		<Exec Condition="'$(OS)' == 'Windows_NT'" Command="%22$(SolutionDir)build_helpers.bat%22 rev %22$(ConfigurationName)%22" />
+		<Exec Condition="'$(OS)' == 'Unix'" Command="bash $(ProjectDir)../../build_helpers.sh rev $(ConfigurationName)" />
 	</Target>
 
 	<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
diff --git a/src/ui/SubtitleEdit.csproj b/src/ui/SubtitleEdit.csproj
index ef1019516..175947ccf 100644
--- a/src/ui/SubtitleEdit.csproj
+++ b/src/ui/SubtitleEdit.csproj
@@ -2648,7 +2648,8 @@
       <HunspellDir>..\..\packages\NHunspell.$(HunspellVersion)\content\</HunspellDir>
     </PropertyGroup>
     <Copy SourceFiles="@(HunspellAssemblies -> '$(HunspellDir)%(Identity)')" DestinationFolder="$(OutputPath)" SkipUnchangedFiles="True" />
-    <Exec Command="%22$(SolutionDir)\build_helpers.bat%22 rev %22$(ConfigurationName)%22" />
+    <Exec Condition="'$(OS)' == 'Windows_NT'" Command="%22$(SolutionDir)\build_helpers.bat%22 rev %22$(ConfigurationName)%22" />
+	  <Exec Condition="'$(OS)' == 'Unix'" Command="bash $(ProjectDir)../../build_helpers.sh rev $(ConfigurationName)" />
   </Target>
   <Target Name="BeforeClean">
     <Delete Files="@(HunspellAssemblies -> '$(OutputPath)%(Identity)')" />