diff --git a/Duplicati/GUI/Duplicati.GUI.TrayIcon/Duplicati.GUI.TrayIcon.csproj b/Duplicati/GUI/Duplicati.GUI.TrayIcon/Duplicati.GUI.TrayIcon.csproj
index 5d88b0ff2..11a6f5bb9 100644
--- a/Duplicati/GUI/Duplicati.GUI.TrayIcon/Duplicati.GUI.TrayIcon.csproj
+++ b/Duplicati/GUI/Duplicati.GUI.TrayIcon/Duplicati.GUI.TrayIcon.csproj
@@ -108,7 +108,7 @@
     <Reference Include="atk-sharp, Version=2.12.0.0, Culture=neutral, PublicKeyToken=35e10195dab3c99f">
       <Package>gtk-sharp-2.0</Package>
     </Reference>
-    <Reference Include="Xamarin.Mac">
+    <Reference Include="Xamarin.Mac" Condition="Exists('\Library\Frameworks\Xamarin.Mac.framework')">
       <HintPath>\Library\Frameworks\Xamarin.Mac.framework\Versions\Current\lib\64bits\full\Xamarin.Mac.dll</HintPath>
     </Reference>
     <Reference Include="notify-sharp">
@@ -484,4 +484,4 @@ copy /Y '%USERPROFILE%\.nuget\packages\alphavss\1.4.0\lib\net45\AlphaVSS.*.dll'
     <PostBuildEvent>
     </PostBuildEvent>
   </PropertyGroup>
-</Project>
\ No newline at end of file
+</Project>