diff --git a/sys/cddl/dev/fbt/aarch64/fbt_isa.c b/sys/cddl/dev/fbt/aarch64/fbt_isa.c
--- a/sys/cddl/dev/fbt/aarch64/fbt_isa.c
+++ b/sys/cddl/dev/fbt/aarch64/fbt_isa.c
@@ -104,7 +104,7 @@
 	 */
 	 if (strcmp(name, "handle_el1h_sync") == 0 ||
 	    strcmp(name, "do_el1h_sync") == 0)
-		return (1);
+		return (0);
 
 	instr = (uint32_t *)(symval->value);
 	limit = (uint32_t *)(symval->value + symval->size);