diff --git a/src/ReactiveUI/ReactiveUI_UWP.csproj b/src/ReactiveUI/ReactiveUI_UWP.csproj
index 68eac18543..821fce3ad0 100644
--- a/src/ReactiveUI/ReactiveUI_UWP.csproj
+++ b/src/ReactiveUI/ReactiveUI_UWP.csproj
@@ -63,6 +63,7 @@
     <Compile Include="ExpressionRewriter.cs" />
     <Compile Include="IDependencyResolver.cs" />
     <Compile Include="INPCObservableForProperty.cs" />
+    <Compile Include="Interactions.cs" />
     <Compile Include="Interfaces.cs" />
     <Compile Include="IReactiveObject.cs" />
     <Compile Include="IROObservableForProperty.cs" />