diff --git a/OpenRA.Mods.RA/OpenRA.Mods.RA.csproj b/OpenRA.Mods.RA/OpenRA.Mods.RA.csproj
index c6b3a49af7..3a28ce89ce 100644
--- a/OpenRA.Mods.RA/OpenRA.Mods.RA.csproj
+++ b/OpenRA.Mods.RA/OpenRA.Mods.RA.csproj
@@ -71,7 +71,9 @@
     <Reference Include="System.Data.DataSetExtensions" />
     <Reference Include="System.Data" />
     <Reference Include="System.Xml" />
-    <Reference Include="ICSharpCode.SharpZipLib">
+    <Reference Include="ICSharpCode.SharpZipLib, Version=0.86.0.518, Culture=neutral, PublicKeyToken=1b03e6acf1164f73">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\thirdparty\ICSharpCode.SharpZipLib.dll</HintPath>
     </Reference>
   </ItemGroup>
   <ItemGroup>