diff --git a/libs/ardour/MSVClibardour/ardour.vcproj b/libs/ardour/MSVClibardour/ardour.vcproj
index fc705980bb..76a53e6a34 100644
--- a/libs/ardour/MSVClibardour/ardour.vcproj
+++ b/libs/ardour/MSVClibardour/ardour.vcproj
@@ -651,6 +651,10 @@
 				RelativePath="..\ladspa_plugin.cc"
 				>
 			</File>
+			<File
+				RelativePath="..\latent.cc"
+				>
+			</File>
 			<File
 				RelativePath="..\legatize.cc"
 				>