diff --git a/refs.h b/refs.h
index 78ad173..f7648b9 100644
--- a/refs.h
+++ b/refs.h
@@ -26,6 +26,7 @@
 extern int for_each_remote_ref(each_ref_fn, void *);
 extern int for_each_replace_ref(each_ref_fn, void *);
 extern int for_each_glob_ref(each_ref_fn, const char *pattern, void *);
+extern int for_each_glob_ref_in(each_ref_fn, const char *pattern, const char* prefix, void *);
 
 /* can be used to learn about broken ref and symref */
 extern int for_each_rawref(each_ref_fn, void *);