diff --git a/src/vim.h b/src/vim.h
index e8a623e..7ea947e 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -708,6 +708,7 @@
 #define EXPAND_USER_DEFINED	30
 #define EXPAND_USER_LIST	31
 #define EXPAND_SHELLCMD		32
+#define EXPAND_CSCOPE		33
 
 /* Values for exmode_active (0 is no exmode) */
 #define EXMODE_NORMAL		1