diff --git a/cpu/stm32/periph/adc_f1.c b/cpu/stm32/periph/adc_f1.c
index 8bd42a95c0..2323598137 100644
--- a/cpu/stm32/periph/adc_f1.c
+++ b/cpu/stm32/periph/adc_f1.c
@@ -30,11 +30,6 @@
  */
 #define MAX_ADC_SPEED           (14000000U)
 
-/**
- * @brief   Load the ADC configuration
- */
-static const adc_conf_t adc_config[] = ADC_CONFIG;
-
 /**
  * @brief   Allocate locks for all three available ADC devices
  */