diff --git a/arch/arm/src/stm32h7/stm32_fdcan_sock.c b/arch/arm/src/stm32h7/stm32_fdcan_sock.c
index bc868150eb35e..268fa18dfbeb1 100644
--- a/arch/arm/src/stm32h7/stm32_fdcan_sock.c
+++ b/arch/arm/src/stm32h7/stm32_fdcan_sock.c
@@ -1972,6 +1972,7 @@ static int fdcan_netdev_ioctl(struct net_driver_s *dev, int cmd,
 #ifdef CONFIG_NET_CAN_CANFD
           priv->data_timing.bitrate = req->data_bitrate * 1000;
 #endif
+          ret = OK;
         }
         break;
 #endif /* CONFIG_NETDEV_CAN_BITRATE_IOCTL */