diff --git a/libs/pbd/MSVCpbd/pbd.vcproj b/libs/pbd/MSVCpbd/pbd.vcproj
index 4b4d148d64..f3061b3ed8 100644
--- a/libs/pbd/MSVCpbd/pbd.vcproj
+++ b/libs/pbd/MSVCpbd/pbd.vcproj
@@ -732,6 +732,10 @@
 				RelativePath="..\pbd\pbd.h"
 				>
 			</File>
+			<File
+				RelativePath="..\pbd\playback_buffer.h"
+				>
+			</File>
 			<File
 				RelativePath="..\pbd\properties.h"
 				>