diff --git a/src/vim.h b/src/vim.h
index d1ec26c..5193d59 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -2722,6 +2722,7 @@
 #define GLV_NO_DECL	TFN_NO_DECL	// assignment without :var or :let
 #define GLV_COMPILING	TFN_COMPILING	// variable may be defined later
 #define GLV_ASSIGN_WITH_OP TFN_ASSIGN_WITH_OP // assignment with operator
+#define GLV_PREFER_FUNC	0x10000		// prefer function above variable
 
 #define DO_NOT_FREE_CNT 99999	// refcount for dict or list that should not
 				// be freed.