1 files changed, 4 insertions, 0 deletions
diff --git a/sql/sql_explain.cc b/sql/sql_explain.cc
index 44654dc2e3d..4fd4e6d3b77 100644
--- a/sql/sql_explain.cc
+++ b/sql/sql_explain.cc
@@ -1100,12 +1100,16 @@ print_explain_json_interns(Explain_query *query,
       {
         writer->start_object();
         writer->add_member("duplicates_removal");
+        writer->start_array();
       }
 
       join_tabs[i]->print_explain_json(query, writer, is_analyze);
 
       if (join_tabs[i]->end_dups_weedout)
+      {
+        writer->end_array();
         writer->end_object();
+      }
     }
   } // "nested_loop"
   print_explain_json_for_children(query, writer, is_analyze);