diff --git a/src/gprs.c b/src/gprs.c
index 99f829f2..e956a236 100644
--- a/src/gprs.c
+++ b/src/gprs.c
@@ -965,7 +965,8 @@ static DBusMessage *pri_set_apn(struct pri_context *ctx, DBusConnection *conn,
 		storage_sync(ctx->gprs->imsi, SETTINGS_STORE, settings);
 	}
 
-	g_dbus_send_reply(conn, msg, DBUS_TYPE_INVALID);
+	if (msg)
+		g_dbus_send_reply(conn, msg, DBUS_TYPE_INVALID);
 
 	ofono_dbus_signal_property_changed(conn, ctx->path,
 					OFONO_CONNECTION_CONTEXT_INTERFACE,