diff --git a/src/soc/intel/skylake/pmutil.c b/src/soc/intel/skylake/pmutil.c
index ec960b5fbe..6d16f52695 100644
--- a/src/soc/intel/skylake/pmutil.c
+++ b/src/soc/intel/skylake/pmutil.c
@@ -5,6 +5,8 @@
  * and the differences between PCH variants.
  */
 
+#define __SIMPLE_DEVICE__
+
 #include <acpi/acpi.h>
 #include <device/mmio.h>
 #include <device/pci_ops.h>
@@ -183,11 +185,8 @@ int rtc_failure(void)
 	u8 reg8;
 	int rtc_failed;
 	/* PMC Controller Device 0x1F, Func 02 */
-#if defined(__SIMPLE_DEVICE__)
-	pci_devfn_t dev = PCH_DEV_PMC;
-#else
-	struct device *dev = PCH_DEV_PMC;
-#endif
+	const pci_devfn_t dev = PCH_DEV_PMC;
+
 	reg8 = pci_read_config8(dev, GEN_PMCON_B);
 	rtc_failed = reg8 & RTC_BATTERY_DEAD;
 	if (rtc_failed) {