diff --git a/drivers/staging/wilc1000/spi.c b/drivers/staging/wilc1000/spi.c
index 11653ac118cd..dfd25df75780 100644
--- a/drivers/staging/wilc1000/spi.c
+++ b/drivers/staging/wilc1000/spi.c
@@ -109,27 +109,27 @@ struct wilc_spi_cmd {
 	union {
 		struct {
 			u8 addr[3];
-			u8 crc[0];
+			u8 crc[];
 		} __packed simple_cmd;
 		struct {
 			u8 addr[3];
 			u8 size[2];
-			u8 crc[0];
+			u8 crc[];
 		} __packed dma_cmd;
 		struct {
 			u8 addr[3];
 			u8 size[3];
-			u8 crc[0];
+			u8 crc[];
 		} __packed dma_cmd_ext;
 		struct {
 			u8 addr[2];
 			__be32 data;
-			u8 crc[0];
+			u8 crc[];
 		} __packed internal_w_cmd;
 		struct {
 			u8 addr[3];
 			__be32 data;
-			u8 crc[0];
+			u8 crc[];
 		} __packed w_cmd;
 	} u;
 } __packed;