diff --git a/util/ncgg/cgg.y b/util/ncgg/cgg.y
index 15059f871..9a2d66cdc 100644
--- a/util/ncgg/cgg.y
+++ b/util/ncgg/cgg.y
@@ -26,6 +26,8 @@ int att_type;
 int patindex[MAXPATTERNS];
 extern set_t l_sets[];
 
+void skipupto(int tok, char *str);
+
 int emhere=0;	/* lexical analyzer flag */
 int optexact=0;	/* Inside "with exact" rule */
 int optstack=0;	/* Inside with <blah> STACK rule */