diff --git a/cpu/esp32/include/adc_arch.h b/cpu/esp32/include/adc_arch.h
index f361c8264f..6d9c6c25cc 100644
--- a/cpu/esp32/include/adc_arch.h
+++ b/cpu/esp32/include/adc_arch.h
@@ -8,11 +8,10 @@
 
 /**
  * @ingroup     cpu_esp32
- * @ingroup     drivers_periph_gpio
  * @{
  *
  * @file
- * @brief       Architecture specific ADC functions ESP32
+ * @brief       Architecture specific ADC functions for ESP32
  *
  * @author      Gunar Schorcht <gunar@schorcht.net>
  * @}
diff --git a/cpu/esp32/include/gpio_arch.h b/cpu/esp32/include/gpio_arch.h
index a170a483c2..6867e990ca 100644
--- a/cpu/esp32/include/gpio_arch.h
+++ b/cpu/esp32/include/gpio_arch.h
@@ -8,11 +8,10 @@
 
 /**
  * @ingroup     cpu_esp32
- * @ingroup     drivers_periph_gpio
  * @{
  *
  * @file
- * @brief       Architecture specific GPIO functions ESP32
+ * @brief       Architecture specific GPIO functions for ESP32
  *
  * @author      Gunar Schorcht <gunar@schorcht.net>
  * @}