1 files changed, 1 insertions, 1 deletions
diff --git a/gawkapi.c b/gawkapi.c
index f87c7759..0a00be69 100644
--- a/gawkapi.c
+++ b/gawkapi.c
@@ -199,7 +199,7 @@ api_lintwarn(awk_ext_id_t id, const char *format, ...)
 /* api_register_open_hook --- register an open hook; for opening files read-only */
 
 static void
-api_register_open_hook(awk_ext_id_t id, void* (*open_func)(IOBUF *))
+api_register_open_hook(awk_ext_id_t id, void* (*open_func)(IOBUF_PUBLIC *))
 {
 	(void) id;