diff --git a/src/os/bluestore/bluestore_types.h b/src/os/bluestore/bluestore_types.h
index e92a7555235b0..dd1773c6ad292 100644
--- a/src/os/bluestore/bluestore_types.h
+++ b/src/os/bluestore/bluestore_types.h
@@ -1315,7 +1315,7 @@ struct sb_info_space_efficient_map_t {
 	  [](const sb_info_t& a, const uint64_t& b) {
 	    return a < b;
 	  });
-	if (it->get_sbid() == id) {
+        if (it != aux_items.end() && it->get_sbid() == id) {
 	  return it;
 	}
       }