diff --git a/components/net/lwip-2.1/porting/src/lwip_init.c b/components/net/lwip-2.1/porting/src/lwip_init.c
index 88e7ed81..3459e059 100644
--- a/components/net/lwip-2.1/porting/src/lwip_init.c
+++ b/components/net/lwip-2.1/porting/src/lwip_init.c
@@ -33,7 +33,8 @@
 #include <stdlib.h>
 #include "lwip/tcpip.h"
 #include "ohos_init.h"
-void TcpIpPortingInit()
+
+void TcpIpPortingInit(void)
 {
     tcpip_init(NULL, NULL);
 }