diff --git a/byterun/caml/minor_gc.h b/byterun/caml/minor_gc.h
index f930497e7..ed636e0ba 100644
--- a/byterun/caml/minor_gc.h
+++ b/byterun/caml/minor_gc.h
@@ -40,7 +40,7 @@ CAMLextern struct caml_ref_table caml_ref_table, caml_weak_ref_table;
 extern void caml_set_minor_heap_size (asize_t); /* size in bytes */
 extern void caml_empty_minor_heap (void);
 CAMLextern void caml_minor_collection (void);
-CAMLextern void garbage_collection (void); /* def in asmrun/signals.c */
+CAMLextern void garbage_collection (void); /* def in asmrun/signals_asm.c */
 extern void caml_realloc_ref_table (struct caml_ref_table *);
 extern void caml_alloc_table (struct caml_ref_table *, asize_t, asize_t);
 extern void caml_oldify_one (value, value *);