diff --git a/cpu/atmega328p/include/periph_cpu.h b/cpu/atmega328p/include/periph_cpu.h
index 3555d5b0ef..7ee09fe0bf 100644
--- a/cpu/atmega328p/include/periph_cpu.h
+++ b/cpu/atmega328p/include/periph_cpu.h
@@ -38,7 +38,7 @@ extern "C" {
 enum {
     PORT_B = 1,       /**< port B */
     PORT_C = 2,       /**< port C */
-    PORT_D = 3       /**< port D */
+    PORT_D = 3        /**< port D */
 };
 
 /**
diff --git a/cpu/atmega_common/thread_arch.c b/cpu/atmega_common/thread_arch.c
index ed4d79e906..cb708749dd 100644
--- a/cpu/atmega_common/thread_arch.c
+++ b/cpu/atmega_common/thread_arch.c
@@ -29,7 +29,7 @@
 
 
 /**
- * @brief AVR_CONTEXT_SWAP_INIT intialize the context swap trigger
+ * @brief AVR_CONTEXT_SWAP_INIT initialize the context swap trigger
  * Called when threading is first started.
  */
 #ifndef AVR_CONTEXT_SWAP_INIT