diff --git a/MSVCardour3/Ardour3.vcproj b/MSVCardour3/Ardour3.vcproj
index 43b0c7ce9c..2713f66d50 100644
--- a/MSVCardour3/Ardour3.vcproj
+++ b/MSVCardour3/Ardour3.vcproj
@@ -2153,6 +2153,10 @@
 				RelativePath="..\gtk2_ardour\shuttle_control.h"
 				>
 			</File>
+			<File
+				RelativePath="..\gtk2_ardour\simple_progress_dialog.h"
+				>
+			</File>
 			<File
 				RelativePath="..\gtk2_ardour\soundcloud_export_selector.h"
 				>