diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
index a6c6ec36615e686b296fd4b199107eae08f2ba34..30e30e8e7e7388e535ccc0ef0cdc4ff1825f42b2 100644
--- a/drivers/hwmon/coretemp.c
+++ b/drivers/hwmon/coretemp.c
@@ -57,8 +57,8 @@ MODULE_PARM_DESC(tjmax, "TjMax value in degrees Celsius");
 #define TOTAL_ATTRS		(MAX_CORE_ATTRS + 1)
 #define MAX_CORE_DATA		(NUM_REAL_CORES + BASE_SYSFS_ATTR_NO)
 
-#define TO_PHYS_ID(cpu)		cpu_data(cpu).phys_proc_id
-#define TO_CORE_ID(cpu)		cpu_data(cpu).cpu_core_id
+#define TO_PHYS_ID(cpu)		(cpu_data(cpu).phys_proc_id)
+#define TO_CORE_ID(cpu)		(cpu_data(cpu).cpu_core_id)
 #define TO_ATTR_NO(cpu)		(TO_CORE_ID(cpu) + BASE_SYSFS_ATTR_NO)
 
 #ifdef CONFIG_SMP