diff --git a/boards/sim/sim/sim/src/sim_boot.c b/boards/sim/sim/sim/src/sim_boot.c
index 0717cca4827..7883c7ffc2b 100644
--- a/boards/sim/sim/sim/src/sim_boot.c
+++ b/boards/sim/sim/sim/src/sim_boot.c
@@ -37,7 +37,7 @@
  * Description:
  *   If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional
  *   initialization call will be performed in the boot-up sequence to a
- *   function called board_late_initialize().  board_late_initialize() will be
+ *   function called board_late_initialize(). board_late_initialize() will be
  *   called immediately after up_initialize() is called and just before the
  *   initial application is started.  This additional initialization phase
  *   may be used, for example, to initialize board-specific device drivers.