diff --git a/cpu/atmega_common/periph/gpio.c b/cpu/atmega_common/periph/gpio.c
index 1a5066e64f..b278407489 100644
--- a/cpu/atmega_common/periph/gpio.c
+++ b/cpu/atmega_common/periph/gpio.c
@@ -65,7 +65,7 @@
 static gpio_isr_ctx_t config[GPIO_EXT_INT_NUMOF];
 
 /**
- * @brief detects ammount of possible PCINTs
+ * @brief detects amount of possible PCINTs
  */
 #if defined(MODULE_ATMEGA_PCINT0) || defined(MODULE_ATMEGA_PCINT1) || \
     defined(MODULE_ATMEGA_PCINT2) || defined(MODULE_ATMEGA_PCINT3)