diff --git a/python/templates/macros/implementations.jinja2 b/python/templates/macros/implementations.jinja2
index 6bac87ae0..fddd1be3e 100644
--- a/python/templates/macros/implementations.jinja2
+++ b/python/templates/macros/implementations.jinja2
@@ -124,9 +124,7 @@ const {{ relation.full_type }} {{ class_type }}::{{ relation.getter_name(get_syn
 {% set class_type = prefix + class.bare_type %}
 {% for relation in relations %}
 void {{ class_type }}::{{ relation.setter_name(get_syntax) }}(const {{ relation.full_type }}& value) {
-  if (m_obj->m_{{ relation.name }}) {
-    delete m_obj->m_{{ relation.name }};
-  }
+  delete m_obj->m_{{ relation.name }};
   m_obj->m_{{ relation.name }} = new {{ relation.full_type }}(value);
 }