diff --git a/epan/dissectors/packet-mongo.c b/epan/dissectors/packet-mongo.c
index b37c1a1a62..91d2730f3a 100644
--- a/epan/dissectors/packet-mongo.c
+++ b/epan/dissectors/packet-mongo.c
@@ -469,6 +469,10 @@ dissect_bson_document(tvbuff_t *tvb, packet_info *pinfo, guint offset, proto_tre
     }  /* end switch() */
   } while (offset < final_offset-1);
 
+  // Restore depth.
+  nest_level--;
+  p_set_proto_depth(pinfo, proto_mongo, nest_level);
+
   return document_length;
 }