diff --git a/os_dep/linux/recv_linux.c b/os_dep/linux/recv_linux.c
index d87c40b..5e7db29 100644
--- a/os_dep/linux/recv_linux.c
+++ b/os_dep/linux/recv_linux.c
@@ -405,7 +405,7 @@ static int napi_recv(_adapter *padapter, int budget)
 			So, we should prevent cloned SKB go into napi_gro_receive.
 		*/
 		if (pregistrypriv->en_gro && !skb_cloned(pskb)) {
-if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 12, 0))
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 12, 0))
 			if (rtw_napi_gro_receive(&padapter->napi, pskb) != GRO_MERGED_FREE)
 #else
 			if (rtw_napi_gro_receive(&padapter->napi, pskb) != GRO_DROP)