diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 84a88db39d..77dc50ca8b 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -9547,7 +9547,7 @@ mdb_cursor_del0(MDB_cursor *mc)
 			}
 		}
 	}
-	m3->mc_flags |= C_DEL;
+	mc->mc_flags |= C_DEL;
 
 fail:
 	if (rc)