diff --git a/library/Library.csproj b/library/Library.csproj
index 320070aa..0a5e73bd 100644
--- a/library/Library.csproj
+++ b/library/Library.csproj
@@ -53,7 +53,7 @@
     <Compile Include="Data\DataSqlite.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Structures\Enums.cs" />
-    <Compile Include="Structures\GtsDatagram4.cs" />
+    <Compile Include="Structures\GtsRecord4.cs" />
     <Compile Include="Support\AssertHelper.cs" />
   </ItemGroup>
   <ItemGroup />