diff --git a/cpu/stm32/include/periph/f2/periph_cpu.h b/cpu/stm32/include/periph/f2/periph_cpu.h
index 598dfbc3b5..f16d4f5f35 100644
--- a/cpu/stm32/include/periph/f2/periph_cpu.h
+++ b/cpu/stm32/include/periph/f2/periph_cpu.h
@@ -28,7 +28,11 @@ extern "C" {
 /**
  * @brief   Available number of ADC devices
  */
+#if defined (ADC3)
+#define ADC_DEVS            (3U)
+#else
 #define ADC_DEVS            (2U)
+#endif
 
 #ifndef DOXYGEN