diff --git a/include/libopencm3/stm32/f2/rcc.h b/include/libopencm3/stm32/f2/rcc.h
index 4ffa2427..1af6ccfb 100644
--- a/include/libopencm3/stm32/f2/rcc.h
+++ b/include/libopencm3/stm32/f2/rcc.h
@@ -426,7 +426,7 @@
 #define RCC_CSR_SFTRSTF				(1 << 28)
 #define RCC_CSR_PORRSTF				(1 << 27)
 #define RCC_CSR_PINRSTF				(1 << 26)
-#define RCC_CSR_BORRSTF				(1 << 26)
+#define RCC_CSR_BORRSTF				(1 << 25)
 #define RCC_CSR_RMVF				(1 << 24)
 #define RCC_CSR_LSIRDY				(1 << 1)
 #define RCC_CSR_LSION				(1 << 0)
diff --git a/include/libopencm3/stm32/f4/rcc.h b/include/libopencm3/stm32/f4/rcc.h
index 16885841..a7189032 100644
--- a/include/libopencm3/stm32/f4/rcc.h
+++ b/include/libopencm3/stm32/f4/rcc.h
@@ -427,7 +427,7 @@
 #define RCC_CSR_SFTRSTF				(1 << 28)
 #define RCC_CSR_PORRSTF				(1 << 27)
 #define RCC_CSR_PINRSTF				(1 << 26)
-#define RCC_CSR_BORRSTF				(1 << 26)
+#define RCC_CSR_BORRSTF				(1 << 25)
 #define RCC_CSR_RMVF				(1 << 24)
 #define RCC_CSR_LSIRDY				(1 << 1)
 #define RCC_CSR_LSION				(1 << 0)