diff --git a/drivers/staging/rtl8188eu/core/rtw_recv.c b/drivers/staging/rtl8188eu/core/rtw_recv.c
index b7abe8c7c8cd..3a621d58e53d 100644
--- a/drivers/staging/rtl8188eu/core/rtw_recv.c
+++ b/drivers/staging/rtl8188eu/core/rtw_recv.c
@@ -632,12 +632,6 @@ static void count_rx_stats(struct adapter *padapter,
 	}
 }
 
-int sta2sta_data_frame(
-	struct adapter *adapter,
-	struct recv_frame *precv_frame,
-	struct sta_info **psta
-);
-
 int sta2sta_data_frame(struct adapter *adapter, struct recv_frame *precv_frame,
 		       struct sta_info **psta)
 {