diff --git a/Source/ConformalDecals/ConformalDecals.csproj b/Source/ConformalDecals/ConformalDecals.csproj
index fd1d246..5d0c43b 100644
--- a/Source/ConformalDecals/ConformalDecals.csproj
+++ b/Source/ConformalDecals/ConformalDecals.csproj
@@ -56,6 +56,7 @@
         <Compile Include="DecalPropertyIDs.cs" />
         <Compile Include="MaterialProperties\MaterialColorProperty.cs" />
         <Compile Include="MaterialProperties\MaterialFloatProperty.cs" />
+        <Compile Include="MaterialProperties\MaterialKeywordProperty.cs" />
         <Compile Include="MaterialProperties\MaterialProperty.cs" />
         <Compile Include="MaterialProperties\MaterialPropertyCollection.cs" />
         <Compile Include="MaterialProperties\MaterialTextureProperty.cs" />