diff --git a/src/mainboard/hp/dl145_g3/get_bus_conf.c b/src/mainboard/hp/dl145_g3/get_bus_conf.c
index cef2886f7e..ba0fc886e1 100644
--- a/src/mainboard/hp/dl145_g3/get_bus_conf.c
+++ b/src/mainboard/hp/dl145_g3/get_bus_conf.c
@@ -82,7 +82,7 @@ void get_bus_conf(void)
 
 	m = sysconf.mb;
 
-	sysconf.hc_possible_num = sizeof(pci1234x)/sizeof(pci1234x[0]);
+	sysconf.hc_possible_num = ARRAY_SIZE(pci1234x);
 
 	for(i=0;i<sysconf.hc_possible_num; i++) {
 		sysconf.pci1234[i] = pci1234x[i];