diff --git a/arch/avr/src/avr/excptmacros.h b/arch/avr/src/avr/excptmacros.h
index 604ad5fae8d..b1d9583b804 100755
--- a/arch/avr/src/avr/excptmacros.h
+++ b/arch/avr/src/avr/excptmacros.h
@@ -415,7 +415,7 @@
 
 	.macro	TCB_RESTORE, regs
 
-	/* X [r36:27] points to the resister save block.  Get an offset pointer to the PC in
+	/* X [r36:27] points to the register save block.  Get an offset pointer to the PC in
 	 * Y [r28:29]
 	 */
 
diff --git a/arch/avr/src/avr/up_switchcontext.S b/arch/avr/src/avr/up_switchcontext.S
index e60939c849f..3e451f4092e 100755
--- a/arch/avr/src/avr/up_switchcontext.S
+++ b/arch/avr/src/avr/up_switchcontext.S
@@ -122,7 +122,7 @@ up_switchcontext:
 	.global	up_fullcontextrestore
 	.func	up_fullcontextrestore
 up_fullcontextrestore:
-	/* Use X ]r26:r27] to reference the restore structure.  */
+	/* Use X [r26:r27] to reference the restore structure.  */
 
 	movw	r26, r24