diff --git a/src/oceanic_atom2.c b/src/oceanic_atom2.c
index 3eb1b8f..7754501 100644
--- a/src/oceanic_atom2.c
+++ b/src/oceanic_atom2.c
@@ -71,7 +71,7 @@ static const oceanic_common_layout_t oceanic_atom2_layout = {
 	0x0040, /* cf_pointers */
 	0x0240, /* rb_logbook_begin */
 	0x0A40, /* rb_logbook_end */
-	0x0A50, /* rb_profile_begin */
+	0x0A40, /* rb_profile_begin */
 	0x10000, /* rb_profile_end */
 	0 /* mode */
 };