diff --git a/Libraries/CMSIS/Device/Maxim/MAX32650/Include/max32650.h b/Libraries/CMSIS/Device/Maxim/MAX32650/Include/max32650.h
index 9f4ecb0187d..81e373211a4 100644
--- a/Libraries/CMSIS/Device/Maxim/MAX32650/Include/max32650.h
+++ b/Libraries/CMSIS/Device/Maxim/MAX32650/Include/max32650.h
@@ -285,10 +285,6 @@ typedef enum {
 
 /* ************************************************************************** */
 /*                                                                      Timer */
-#define SEC(s) (((uint32_t)s) * 1000000UL)
-#define MSEC(ms) (ms * 1000UL)
-#define USEC(us) (us)
-
 #define MXC_CFG_TMR_INSTANCES (6)
 
 #define MXC_BASE_TMR0 ((uint32_t)0x40010000UL)