diff --git a/include/libopencm3/stm32/f3/memorymap.h b/include/libopencm3/stm32/f3/memorymap.h
index 500a0671..4d389af9 100644
--- a/include/libopencm3/stm32/f3/memorymap.h
+++ b/include/libopencm3/stm32/f3/memorymap.h
@@ -107,9 +107,9 @@
 
 /* AHB3 */
 #define ADC3_BASE			(PERIPH_BASE_AHB3 + 0x0400)
-#define ADC4_BASE			(PERIPH_BASE_AHB3 + 0x0400)
+#define ADC4_BASE			(PERIPH_BASE_AHB3 + 0x0500)
 #define ADC1_BASE			(PERIPH_BASE_AHB3 + 0x0000)
-#define ADC2_BASE			(PERIPH_BASE_AHB3 + 0x0000)
+#define ADC2_BASE			(PERIPH_BASE_AHB3 + 0x0100)
 
 /* PPIB */
 #define DBGMCU_BASE			(PPBI_BASE + 0x00042000)