diff --git a/libs/ardour/MSVClibardour/ardour.vcproj b/libs/ardour/MSVClibardour/ardour.vcproj
index 59121ed715..de53a61b59 100644
--- a/libs/ardour/MSVClibardour/ardour.vcproj
+++ b/libs/ardour/MSVClibardour/ardour.vcproj
@@ -567,6 +567,14 @@
 				RelativePath="..\export_timespan.cc"
 				>
 			</File>
+			<File
+				RelativePath="..\ffmpegfileimportable.cc"
+				>
+			</File>
+			<File
+				RelativePath="..\ffmpegfilesource.cc"
+				>
+			</File>
 			<File
 				RelativePath="..\file_source.cc"
 				>
@@ -1897,6 +1905,14 @@
 				RelativePath="..\ardour\export_timespan.h"
 				>
 			</File>
+			<File
+				RelativePath="..\ardour\ffmpegfileimportable.h"
+				>
+			</File>
+			<File
+				RelativePath="..\ardour\ffmpegfilesource.h"
+				>
+			</File>
 			<File
 				RelativePath="..\ardour\file_source.h"
 				>