diff --git a/Visual Studio Projects/HP2100.vcproj b/Visual Studio Projects/HP2100.vcproj
index a8eb8563..88b259fd 100644
--- a/Visual Studio Projects/HP2100.vcproj	
+++ b/Visual Studio Projects/HP2100.vcproj	
@@ -358,7 +358,7 @@
 				>
 			</File>
 			<File
-				RelativePath="hp2100_defs.h"
+				RelativePath="..\HP2100\hp2100_defs.h"
 				>
 			</File>
 			<File