diff --git a/sql/sql_select.cc b/sql/sql_select.cc
index f762cfd7ac4..aac35d6ef17 100644
--- a/sql/sql_select.cc
+++ b/sql/sql_select.cc
@@ -16209,6 +16209,7 @@ Item *eliminate_item_equal(THD *thd, COND *cond, COND_EQUAL *upper_levels,
 
       if (!eq_item || eq_item->set_cmp_func(thd))
         return 0;
+      eq_item->eval_not_null_tables(0);
       eq_item->quick_fix_field();
     }
     current_sjm= field_sjm;
@@ -16266,6 +16267,7 @@ Item *eliminate_item_equal(THD *thd, COND *cond, COND_EQUAL *upper_levels,
   {
     res->quick_fix_field();
     res->update_used_tables();
+    res->eval_not_null_tables(0);
   }
 
   return res;