diff --git a/plugin/type_assoc_array/sql_type_assoc_array.h b/plugin/type_assoc_array/sql_type_assoc_array.h
index 7f5cad625e0..40784c53dea 100644
--- a/plugin/type_assoc_array/sql_type_assoc_array.h
+++ b/plugin/type_assoc_array/sql_type_assoc_array.h
@@ -105,7 +105,7 @@ protected:
       */
       if (unlikely(!item->is_explicit_name()))
       {
-        my_error(ER_NEED_NAMED_ASSOCIATION, MYF(0), def.get_name());
+        my_error(ER_NEED_NAMED_ASSOCIATION, MYF(0), def.get_name().str);
         return true;
       }