diff --git a/streecmp.h b/streecmp.h
index 318df1c..92a12a3 100644
--- a/streecmp.h
+++ b/streecmp.h
@@ -21,5 +21,6 @@ struct nod *mknod(struct nod *nod, int loc);
 int mkstr(struct nod *nod, char *str);
 int gentree(struct nod *nod, char *strs, char *delim);
 int streecmp(struct nod *nod, char *str);
+int streencmp(struct nod *nod, char *str, int len);
 
 #endif