diff --git a/Samples/Chat/ChatClient/ChatClient.csproj b/Samples/Chat/ChatClient/ChatClient.csproj
index 67d49d4..c02924e 100644
--- a/Samples/Chat/ChatClient/ChatClient.csproj
+++ b/Samples/Chat/ChatClient/ChatClient.csproj
@@ -72,6 +72,10 @@
       <Project>{49BA1C69-6104-41AC-A5D8-B54FA9F696E8}</Project>
       <Name>Lidgren.Network</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\SamplesCommon\SamplesCommon.csproj">
+      <Project>{773069DA-B66E-4667-ADCB-0D215AD8CF3E}</Project>
+      <Name>SamplesCommon</Name>
+    </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
diff --git a/Samples/Chat/ChatServer/ChatServer.csproj b/Samples/Chat/ChatServer/ChatServer.csproj
index 39a1ae1..586de52 100644
--- a/Samples/Chat/ChatServer/ChatServer.csproj
+++ b/Samples/Chat/ChatServer/ChatServer.csproj
@@ -72,6 +72,10 @@
       <Project>{49BA1C69-6104-41AC-A5D8-B54FA9F696E8}</Project>
       <Name>Lidgren.Network</Name>
     </ProjectReference>
+    <ProjectReference Include="..\..\SamplesCommon\SamplesCommon.csproj">
+      <Project>{773069DA-B66E-4667-ADCB-0D215AD8CF3E}</Project>
+      <Name>SamplesCommon</Name>
+    </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it.