diff --git a/TGServiceInstaller/TGServiceInstaller.wixproj b/TGServiceInstaller/TGServiceInstaller.wixproj
index fdfb058ba6..f0cf2730ea 100644
--- a/TGServiceInstaller/TGServiceInstaller.wixproj
+++ b/TGServiceInstaller/TGServiceInstaller.wixproj
@@ -71,7 +71,7 @@
     <Error Text="The WiX Toolset v3 build tools must be installed to build this project. To download the WiX Toolset, see http://wixtoolset.org/releases/" />
   </Target>
   <Target Name="AfterResolveReferences">
-    <Exec Command="powershell -Command ""$(SolutionDir)Tools/SignBasics.ps1""" />
+    <Exec Command="powershell -Command &quot;$(SolutionDir)Tools/SignBasics.ps1&quot;" />
   </Target>
   <PropertyGroup>
     <PostBuildEvent>powershell -Command "$(SolutionDir)Tools/SignMSI.ps1"</PostBuildEvent>