diff --git a/libs/gtkmm2ext/MSVCgtkmm2ext/gtkmm2ext.vcproj b/libs/gtkmm2ext/MSVCgtkmm2ext/gtkmm2ext.vcproj
index f86add864d..fd314d532c 100644
--- a/libs/gtkmm2ext/MSVCgtkmm2ext/gtkmm2ext.vcproj
+++ b/libs/gtkmm2ext/MSVCgtkmm2ext/gtkmm2ext.vcproj
@@ -293,6 +293,10 @@
 				RelativePath="..\bindings.cc"
 				>
 			</File>
+			<File
+				RelativePath="..\cairo_icon.cc"
+				>
+			</File>
 			<File
 				RelativePath="..\cairo_packer.cc"
 				>
@@ -417,6 +421,10 @@
 				RelativePath="..\stateful_button.cc"
 				>
 			</File>
+			<File
+				RelativePath="..\tabbable.cc"
+				>
+			</File>
 			<File
 				RelativePath="..\tearoff.cc"
 				>
@@ -441,6 +449,10 @@
 				RelativePath="..\visibility_tracker.cc"
 				>
 			</File>
+			<File
+				RelativePath="..\window_proxy.cc"
+				>
+			</File>
 			<File
 				RelativePath="..\window_title.cc"
 				>
@@ -487,6 +499,10 @@
 				RelativePath="..\gtkmm2ext\bindings.h"
 				>
 			</File>
+			<File
+				RelativePath="..\gtkmm2ext\cairo_icon.h"
+				>
+			</File>
 			<File
 				RelativePath="..\gtkmm2ext\cairo_packer.h"
 				>
@@ -631,6 +647,10 @@
 				RelativePath="..\gtkmm2ext\sync-menu.h"
 				>
 			</File>
+			<File
+				RelativePath="..\gtkmm2ext\tabbable.h"
+				>
+			</File>
 			<File
 				RelativePath="..\gtkmm2ext\tearoff.h"
 				>
@@ -655,6 +675,10 @@
 				RelativePath="..\gtkmm2ext\widget_state.h"
 				>
 			</File>
+			<File
+				RelativePath="..\gtkmm2ext\window_proxy.h"
+				>
+			</File>
 			<File
 				RelativePath="..\gtkmm2ext\window_title.h"
 				>