diff --git a/src/field-set.h b/src/field-set.h
index ee7df811d..60727fcaa 100644
--- a/src/field-set.h
+++ b/src/field-set.h
@@ -167,6 +167,14 @@ gc_field_set_clear(struct gc_field_set *set,
   }
 }
 
+static inline void
+gc_field_set_visit_edge_buffer(struct gc_field_set *set,
+                               struct gc_edge_buffer *buf,
+                               void (*visit)(struct gc_edge,
+                                             struct gc_heap*,
+                                             void *data),
+                               struct gc_heap *heap,
+                               void *data) GC_ALWAYS_INLINE;
 static inline void
 gc_field_set_visit_edge_buffer(struct gc_field_set *set,
                                struct gc_edge_buffer *buf,