diff --git a/DesertPaintLab.csproj b/DesertPaintLab.csproj
--- a/DesertPaintLab.csproj
+++ b/DesertPaintLab.csproj
@@ -76,9 +76,7 @@
     <Compile Include="ReactionRecorder.cs" />
     <Compile Include="ReactionStatusWindow.cs" />
     <Compile Include="gtk-gui\DesertPaintLab.ReactionStatusWindow.cs" />
-    <Compile Include="RecipeGeneratorWindow.cs">
-      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-    </Compile>
+    <Compile Include="RecipeGeneratorWindow.cs" />
     <Compile Include="gtk-gui\DesertPaintLab.RecipeGeneratorWindow.cs" />
     <Compile Include="ReactionSet.cs" />
     <Compile Include="RecipeGenerator.cs" />