diff --git a/vc2005/fltk.lib.vcproj b/vc2005/fltk.lib.vcproj
index 78be0d8de..fd8faa31e 100644
--- a/vc2005/fltk.lib.vcproj
+++ b/vc2005/fltk.lib.vcproj
@@ -4,6 +4,7 @@
 	Version="8.00"
 	Name="fltk"
 	ProjectGUID="{E070AAFC-9D03-41A3-BC7D-30887EA0D50F}"
+	RootNamespace="fltk"
 	>
 	<Platforms>
 		<Platform
@@ -1509,6 +1510,10 @@
 				/>
 			</FileConfiguration>
 		</File>
+		<File
+			RelativePath="..\src\fl_gtk.cxx"
+			>
+		</File>
 		<File
 			RelativePath="..\src\Fl_Help_View.cxx"
 			>
diff --git a/vc2005/fltkdll.vcproj b/vc2005/fltkdll.vcproj
index e5939b468..91763aae0 100644
--- a/vc2005/fltkdll.vcproj
+++ b/vc2005/fltkdll.vcproj
@@ -4,6 +4,7 @@
 	Version="8.00"
 	Name="fltkdll"
 	ProjectGUID="{F0B8F4BD-955D-43CB-980C-805364D04A25}"
+	RootNamespace="fltkdll"
 	>
 	<Platforms>
 		<Platform
@@ -1563,6 +1564,10 @@
 				/>
 			</FileConfiguration>
 		</File>
+		<File
+			RelativePath="..\src\fl_gtk.cxx"
+			>
+		</File>
 		<File
 			RelativePath="..\src\Fl_Help_Dialog.cxx"
 			>