diff --git a/visualc_net/dosbox.vcproj b/visualc_net/dosbox.vcproj
index 876bd306..ae885531 100644
--- a/visualc_net/dosbox.vcproj
+++ b/visualc_net/dosbox.vcproj
@@ -822,6 +822,9 @@
 			<File
 				RelativePath="..\include\mem.h">
 			</File>
+			<File
+				RelativePath="..\include\midi.h">
+			</File>
 			<File
 				RelativePath="..\include\mixer.h">
 			</File>