diff --git a/drivers/net/wireless/realtek/rtl8192cu/core/rtw_br_ext.c b/drivers/net/wireless/realtek/rtl8192cu/core/rtw_br_ext.c
index a5ac60130a3c..39289c970543 100644
--- a/drivers/net/wireless/realtek/rtl8192cu/core/rtw_br_ext.c
+++ b/drivers/net/wireless/realtek/rtl8192cu/core/rtw_br_ext.c
@@ -51,6 +51,7 @@
 #include <linux/icmpv6.h>
 #include <net/ndisc.h>
 #include <net/checksum.h>
+#include <net/ip6_checksum.h>
 #endif
 #endif