diff --git a/include/libopencm3/stm32/f3/pwr.h b/include/libopencm3/stm32/f3/pwr.h
index 08bfbe2f..be392ab5 100644
--- a/include/libopencm3/stm32/f3/pwr.h
+++ b/include/libopencm3/stm32/f3/pwr.h
@@ -43,27 +43,13 @@
 
 #include <libopencm3/stm32/common/pwr_common_v1.h>
 
-/* --- PWR_CR values ------------------------------------------------------- */
-
-/* Bits [31:10]: Reserved */
-#define PWR_CR_DBP			(1 << 8)
-/* Bits [7:5]: Reserved  PLS: PVD level selection. (Power Voltage Detector) */
-#define PWR_CR_PVDE			(1 << 4)
-#define PWR_CR_CSBF			(1 << 3)
-#define PWR_CR_CWUF			(1 << 2)
-#define PWR_CR_PDDS			(1 << 1)
-#define PWR_CR_LPDS			(1 << 0)
-
-
 /* --- PWR_CSR values ------------------------------------------------------ */
 
-/* Bits [31:10]: Reserved */
+/** Enable WKUP pin 3 */
+#define PWR_CSR_EWUP3			(1 << 10)
+/** Enable WKUP pin 2 */
 #define PWR_CSR_EWUP2			(1 << 9)
-#define PWR_CSR_EWUP1			(1 << 8)
-/* Bits [7:3]: Reserved */
-#define PWR_CSR_PVDO			(1 << 2)
-#define PWR_CSR_SBF			(1 << 1)
-#define PWR_CSR_WUF			(1 << 0)
-
+/** Enable WKUP pin 1 */
+#define PWR_CSR_EWUP1			PWR_CSR_EWUP
 
 #endif