diff --git a/include/nlohmann/detail/conversions/to_json.hpp b/include/nlohmann/detail/conversions/to_json.hpp
index f42735e83..228e81879 100644
--- a/include/nlohmann/detail/conversions/to_json.hpp
+++ b/include/nlohmann/detail/conversions/to_json.hpp
@@ -167,9 +167,7 @@ struct external_constructor<value_t::array>
         for (const bool x : arr)
         {
             j.m_value.array->push_back(x);
-#if JSON_DIAGNOSTICS
-            j.m_value.array->back().m_parent = &j;
-#endif
+            j.set_parent(j.m_value.array->back());
         }
         j.assert_invariant();
     }
diff --git a/single_include/nlohmann/json.hpp b/single_include/nlohmann/json.hpp
index 78375c5c0..4ed9994e2 100644
--- a/single_include/nlohmann/json.hpp
+++ b/single_include/nlohmann/json.hpp
@@ -4337,9 +4337,7 @@ struct external_constructor<value_t::array>
         for (const bool x : arr)
         {
             j.m_value.array->push_back(x);
-#if JSON_DIAGNOSTICS
-            j.m_value.array->back().m_parent = &j;
-#endif
+            j.set_parent(j.m_value.array->back());
         }
         j.assert_invariant();
     }