diff --git a/drivers/staging/hp/hp100.c b/drivers/staging/hp/hp100.c
index 9b7ac5a68ddf..430395908011 100644
--- a/drivers/staging/hp/hp100.c
+++ b/drivers/staging/hp/hp100.c
@@ -119,7 +119,7 @@
 #define HP100_REGION_SIZE	0x20	/* for ioports */
 #define HP100_SIG_LEN		8	/* same as EISA_SIG_LEN */
 
-#define HP100_MAX_PACKET_SIZE	(1536+4)
+#define HP100_MAX_PACKET_SIZE	(1536 + 4)
 #define HP100_MIN_PACKET_SIZE	60
 
 #ifndef HP100_DEFAULT_RX_RATIO