diff --git a/libs/ardour/MSVClibardour/ardour.vcproj b/libs/ardour/MSVClibardour/ardour.vcproj
index 8a211ef590..f35487eb62 100644
--- a/libs/ardour/MSVClibardour/ardour.vcproj
+++ b/libs/ardour/MSVClibardour/ardour.vcproj
@@ -879,6 +879,10 @@
 				RelativePath="..\plugin_manager.cc"
 				>
 			</File>
+			<File
+				RelativePath="..\polarity_processor.cc"
+				>
+			</File>
 			<File
 				RelativePath="..\port.cc"
 				>
@@ -979,6 +983,10 @@
 				RelativePath="..\route_group_member.cc"
 				>
 			</File>
+			<File
+				RelativePath="..\rt_tasklist.cc"
+				>
+			</File>
 			<File
 				RelativePath="..\scene_change.cc"
 				>
@@ -2149,6 +2157,10 @@
 				RelativePath="..\ardour\plugin_types.h"
 				>
 			</File>
+			<File
+				RelativePath="..\ardour\polarity_processor.h"
+				>
+			</File>
 			<File
 				RelativePath="..\ardour\port.h"
 				>
@@ -2265,6 +2277,10 @@
 				RelativePath="..\ardour\route_group_specialized.h"
 				>
 			</File>
+			<File
+				RelativePath="..\ardour\rt_tasklist.h"
+				>
+			</File>
 			<File
 				RelativePath="..\ardour\runtime_functions.h"
 				>