diff --git a/Demo/CORTEX_MPU_LM3Sxxxx_Rowley/thumb_crt0.s b/Demo/CORTEX_MPU_LM3Sxxxx_Rowley/thumb_crt0.s
index ec6d5090a..10fc4cd03 100644
--- a/Demo/CORTEX_MPU_LM3Sxxxx_Rowley/thumb_crt0.s
+++ b/Demo/CORTEX_MPU_LM3Sxxxx_Rowley/thumb_crt0.s
@@ -119,7 +119,7 @@ _start:
   mov r2, #0
   bl memory_set
 
-  /* Zereo the privileged data. */
+  /* Zero the privileged data. */
   ldr r0, =__privileged_data_start__
   ldr r1, =__privileged_data_end__
   mov r2, #0