diff --git a/Libraries/PeriphDrivers/Source/TMR/tmr_me21.c b/Libraries/PeriphDrivers/Source/TMR/tmr_me21.c
index 7c7bef28c95..4f8401acaad 100644
--- a/Libraries/PeriphDrivers/Source/TMR/tmr_me21.c
+++ b/Libraries/PeriphDrivers/Source/TMR/tmr_me21.c
@@ -304,7 +304,8 @@ uint32_t MXC_TMR_GetPeriod(mxc_tmr_regs_t *tmr, mxc_tmr_clock_t clock, uint32_t
             break;
 
         case MXC_TMR_32M_CLK:
-            clockFrequency = 16000000; // Clock Frequency 16 MHz
+            clockFrequency = ERFO_FREQ; // Note: Could vary between 16-32Mhz.  ERFO_FREQ should be
+                // overridden for custom designs.
             break;
 
         default: