diff --git a/build/win32/vs10/gtk3-demo.vcxproj b/build/win32/vs10/gtk3-demo.vcxproj
index 8c3f4dfb83..2b7489e8cc 100644
--- a/build/win32/vs10/gtk3-demo.vcxproj
+++ b/build/win32/vs10/gtk3-demo.vcxproj
@@ -196,6 +196,7 @@
     <ClCompile Include="..\..\..\demos\gtk-demo\images.c" />
     <ClCompile Include="..\..\..\demos\gtk-demo\infobar.c" />
     <ClCompile Include="..\..\..\demos\gtk-demo\links.c" />
+    <ClCompile Include="..\..\..\demos\gtk-demo\listbox.c" />
     <ClCompile Include="..\..\..\demos\gtk-demo\list_store.c" />
     <ClCompile Include="..\..\..\demos\gtk-demo\main.c" />
     <ClCompile Include="..\..\..\demos\gtk-demo\menus.c" />
diff --git a/build/win32/vs10/gtk3-demo.vcxproj.filters b/build/win32/vs10/gtk3-demo.vcxproj.filters
index 07d6e06c38..9d0e1e6e4f 100644
--- a/build/win32/vs10/gtk3-demo.vcxproj.filters
+++ b/build/win32/vs10/gtk3-demo.vcxproj.filters
@@ -92,6 +92,9 @@
     <ClCompile Include="..\..\..\demos\gtk-demo\links.c">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\demos\gtk-demo\listbox.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\demos\gtk-demo\list_store.c">
       <Filter>Source Files</Filter>
     </ClCompile>
diff --git a/build/win32/vs9/gtk3-demo.vcproj b/build/win32/vs9/gtk3-demo.vcproj
index 9e5bd83d7f..bdecc5e53d 100644
--- a/build/win32/vs9/gtk3-demo.vcproj
+++ b/build/win32/vs9/gtk3-demo.vcproj
@@ -187,6 +187,7 @@
 			<File RelativePath="..\..\..\demos\gtk-demo\images.c" />
 			<File RelativePath="..\..\..\demos\gtk-demo\infobar.c" />
 			<File RelativePath="..\..\..\demos\gtk-demo\links.c" />
+			<File RelativePath="..\..\..\demos\gtk-demo\listbox.c" />
 			<File RelativePath="..\..\..\demos\gtk-demo\list_store.c" />
 			<File RelativePath="..\..\..\demos\gtk-demo\main.c" />
 			<File RelativePath="..\..\..\demos\gtk-demo\menus.c" />