diff --git a/src/multiline/flb_ml.c b/src/multiline/flb_ml.c
index 5521f4f116c..befc2a42ca1 100644
--- a/src/multiline/flb_ml.c
+++ b/src/multiline/flb_ml.c
@@ -712,6 +712,8 @@ int flb_ml_append(struct flb_ml *ml, uint64_t stream_id,
             flb_ml_flush_parser_instance(ml,
                                          lru_parser,
                                          lru_parser->last_stream_id);
+            /* clear last recently used parser to match new parser */
+            lru_parser = NULL;
         }
     }
 
@@ -822,6 +824,8 @@ int flb_ml_append_object(struct flb_ml *ml, uint64_t stream_id,
             flb_ml_flush_parser_instance(ml,
                                          lru_parser,
                                          lru_parser->last_stream_id);
+            /* clear last recently used parser to match new parser */
+            lru_parser = NULL;
         }
     }