diff --git a/arch/arm/include/lpc43xx/chip.h b/arch/arm/include/lpc43xx/chip.h
index d0409ef0bb..dec8ecb762 100644
--- a/arch/arm/include/lpc43xx/chip.h
+++ b/arch/arm/include/lpc43xx/chip.h
@@ -46,7 +46,7 @@
  * Pre-processor Definitions
  ************************************************************************************/
 
-/* Per the data sheet: LPC4350/30/20/10 Rev. 3.2  4 June 2012 */
+/* Per the data sheet: LPC4350/30/20/10 Rev. 3.2 — 4 June 2012 */
 /* Get customizations for each supported chip.
  *
  * SRAM Resources
@@ -74,7 +74,7 @@
  * manager.  This gives some symmetry to all of the members of the family.
  */
 
-/* Per the user manual: UM10503, Rev. 1.2 — 8 June 2012 */
+/* Per the user manual: UM10503, Rev. 1.2 — 8 June 2012 */
 /* Get customizations for each supported chip.
  *
  * SRAM Resources