diff --git a/src/libnm-core-impl/nm-connection.c b/src/libnm-core-impl/nm-connection.c
index 5a46226559..eabb3a6996 100644
--- a/src/libnm-core-impl/nm-connection.c
+++ b/src/libnm-core-impl/nm-connection.c
@@ -124,19 +124,19 @@ _nm_connection_get_private_from_qdata(NMConnection *connection)
     return priv;
 }
 
-#define NM_CONNECTION_GET_PRIVATE(connection)                                                     \
-    ({                                                                                            \
-        NMConnection        *_connection = (connection);                                          \
-        NMConnectionPrivate *_priv;                                                               \
-                                                                                                  \
-        if (G_LIKELY(NM_IS_SIMPLE_CONNECTION(_connection)))                                       \
-            _priv = (gpointer) (&(((char *) _connection)[_nm_simple_connection_private_offset])); \
-        else                                                                                      \
-            _priv = _nm_connection_get_private_from_qdata(_connection);                           \
-                                                                                                  \
-        nm_assert(_priv && _priv->self == _connection);                                           \
-                                                                                                  \
-        _priv;                                                                                    \
+#define NM_CONNECTION_GET_PRIVATE(connection)                                  \
+    ({                                                                         \
+        NMConnection        *_connection = (connection);                       \
+        NMConnectionPrivate *_priv;                                            \
+                                                                               \
+        if (G_LIKELY(NM_IS_SIMPLE_CONNECTION(_connection)))                    \
+            _priv = _NM_SIMPLE_CONNECTION_GET_CONNECTION_PRIVATE(_connection); \
+        else                                                                   \
+            _priv = _nm_connection_get_private_from_qdata(_connection);        \
+                                                                               \
+        nm_assert(_priv && _priv->self == _connection);                        \
+                                                                               \
+        _priv;                                                                 \
     })
 
 /*****************************************************************************/
diff --git a/src/libnm-core-impl/nm-setting-private.h b/src/libnm-core-impl/nm-setting-private.h
index 38b233e92a..01d3113cde 100644
--- a/src/libnm-core-impl/nm-setting-private.h
+++ b/src/libnm-core-impl/nm-setting-private.h
@@ -31,6 +31,23 @@ typedef struct {
 extern GTypeClass *_nm_simple_connection_class_instance;
 extern int         _nm_simple_connection_private_offset;
 
+#define _NM_SIMPLE_CONNECTION_GET_CONNECTION_PRIVATE(connection)                                \
+    ({                                                                                          \
+        gpointer             _connection_1 = (connection);                                      \
+        NMConnectionPrivate *_priv_1;                                                           \
+                                                                                                \
+        nm_assert(NM_IS_SIMPLE_CONNECTION(_connection_1));                                      \
+                                                                                                \
+        _priv_1 = (void *) (&(((char *) _connection_1)[_nm_simple_connection_private_offset])); \
+                                                                                                \
+        nm_assert(_priv_1                                                                       \
+                  == G_TYPE_INSTANCE_GET_PRIVATE(_connection_1,                                 \
+                                                 NM_TYPE_SIMPLE_CONNECTION,                     \
+                                                 NMConnectionPrivate));                         \
+                                                                                                \
+        _priv_1;                                                                                \
+    })
+
 void _nm_connection_private_clear(NMConnectionPrivate *priv);
 
 /*****************************************************************************/
diff --git a/src/libnm-core-impl/nm-simple-connection.c b/src/libnm-core-impl/nm-simple-connection.c
index 6252dc2ce3..802be3caa4 100644
--- a/src/libnm-core-impl/nm-simple-connection.c
+++ b/src/libnm-core-impl/nm-simple-connection.c
@@ -47,9 +47,6 @@ G_DEFINE_TYPE_WITH_CODE(NMSimpleConnection,
                         G_IMPLEMENT_INTERFACE(NM_TYPE_CONNECTION,
                                               nm_simple_connection_interface_init);)
 
-#define _GET_PRIVATE(self) \
-    G_TYPE_INSTANCE_GET_PRIVATE(self, NM_TYPE_SIMPLE_CONNECTION, NMConnectionPrivate)
-
 /*****************************************************************************/
 
 static void
@@ -57,7 +54,7 @@ nm_simple_connection_init(NMSimpleConnection *self)
 {
     NMConnectionPrivate *priv;
 
-    priv = _GET_PRIVATE(self);
+    priv = _NM_SIMPLE_CONNECTION_GET_CONNECTION_PRIVATE(self);
 
     priv->self = (NMConnection *) self;
 }
@@ -157,14 +154,12 @@ nm_simple_connection_new_clone(NMConnection *connection)
 static void
 dispose(GObject *object)
 {
-    NMConnection *connection = NM_CONNECTION(object);
-
 #if NM_MORE_ASSERTS
     g_signal_handlers_disconnect_by_data(object,
                                          (gpointer) &_nm_assert_connection_unchanging_user_data);
 #endif
 
-    _nm_connection_private_clear(_GET_PRIVATE(connection));
+    _nm_connection_private_clear(_NM_SIMPLE_CONNECTION_GET_CONNECTION_PRIVATE(object));
 
     G_OBJECT_CLASS(nm_simple_connection_parent_class)->dispose(object);
 }