diff --git a/libs/ardour/MSVClibardour/ardour.vcproj b/libs/ardour/MSVClibardour/ardour.vcproj
index dee0d1e352..cecb0a0aeb 100644
--- a/libs/ardour/MSVClibardour/ardour.vcproj
+++ b/libs/ardour/MSVClibardour/ardour.vcproj
@@ -611,6 +611,10 @@
 				RelativePath="..\import.cc"
 				>
 			</File>
+			<File
+				RelativePath="..\import_pt.cc"
+				>
+			</File>
 			<File
 				RelativePath="..\instrument_info.cc"
 				>