diff --git a/ChangeLog b/ChangeLog
index 18f350e4d..1c3958f2c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2013-01-21  Colin Watson  <cjwatson@ubuntu.com>
+
+	* grub-core/disk/arc/arcdisk.c (grub_arcdisk_iterate): Fix
+	parameter declarations.
+
 2013-01-21  Vladimir Serbinenko  <phcoder@gmail.com>
 
 	* grub-core/commands/lsmmap.c: Fix unused variable on emu.
diff --git a/grub-core/disk/arc/arcdisk.c b/grub-core/disk/arc/arcdisk.c
index 37c0ac355..5d1212843 100644
--- a/grub-core/disk/arc/arcdisk.c
+++ b/grub-core/disk/arc/arcdisk.c
@@ -102,7 +102,7 @@ grub_arcdisk_iterate_iter (const char *name,
 }
 
 static int
-grub_arcdisk_iterate (int (*hook_in) (const char *name),
+grub_arcdisk_iterate (grub_disk_dev_iterate_hook_t hook, void *hook_data,
 		      grub_disk_pull_t pull)
 {
   struct grub_arcdisk_iterate_ctx ctx = { hook, hook_data };