diff --git a/include/libopencm3/stm32/common/adc_common_v1.h b/include/libopencm3/stm32/common/adc_common_v1.h
index 29ff0d0b7c..6b55b552d5 100644
--- a/include/libopencm3/stm32/common/adc_common_v1.h
+++ b/include/libopencm3/stm32/common/adc_common_v1.h
@@ -402,8 +402,8 @@ uint32_t adc_read_regular(uint32_t adc);
 uint32_t adc_read_injected(uint32_t adc, uint8_t reg);
 void adc_set_continuous_conversion_mode(uint32_t adc);
 void adc_set_single_conversion_mode(uint32_t adc);
-void adc_set_regular_sequence(uint32_t adc, uint8_t length, uint8_t channel[]);
-void adc_set_injected_sequence(uint32_t adc, uint8_t length, uint8_t channel[]);
+void adc_set_regular_sequence(uint32_t adc, uint8_t length, const uint8_t *channel);
+void adc_set_injected_sequence(uint32_t adc, uint8_t length, const uint8_t *channel);
 void adc_set_injected_offset(uint32_t adc, uint8_t reg, uint32_t offset);
 void adc_set_watchdog_high_threshold(uint32_t adc, uint16_t threshold);
 void adc_set_watchdog_low_threshold(uint32_t adc, uint16_t threshold);
diff --git a/lib/stm32/common/adc_common_v1.c b/lib/stm32/common/adc_common_v1.c
index 227855d0fe..e507bac949 100644
--- a/lib/stm32/common/adc_common_v1.c
+++ b/lib/stm32/common/adc_common_v1.c
@@ -571,7 +571,7 @@ the newly defined group.
 @param[in] channel Unsigned int8[]. Set of channels in sequence, integers 0..31.
  */
 
-void adc_set_regular_sequence(uint32_t adc, uint8_t length, uint8_t channel[])
+void adc_set_regular_sequence(uint32_t adc, uint8_t length, const uint8_t *channel)
 {
 	uint32_t fifth6 = 0;
 	uint32_t fourth6 = 0;
@@ -627,7 +627,7 @@ conversion is reset and conversion begins again with the newly defined group.
 @param[in] channel Unsigned int8[]. Set of channels in sequence, integers 0..18
 */
 
-void adc_set_injected_sequence(uint32_t adc, uint8_t length, uint8_t channel[])
+void adc_set_injected_sequence(uint32_t adc, uint8_t length, const uint8_t *channel)
 {
 	uint32_t reg32 = 0;
 	uint8_t i = 0;