diff --git a/speeduino/decoders.cpp b/speeduino/decoders.cpp
index 5f66b2cd..00ed89f4 100644
--- a/speeduino/decoders.cpp
+++ b/speeduino/decoders.cpp
@@ -3506,7 +3506,7 @@ void triggerSetup_ThirtySixMinus222(void)
 {
   triggerToothAngle = 10; //The number of degrees that passes from tooth to tooth
   triggerActualTeeth = 30; //The number of physical teeth on the wheel. Doing this here saves us a calculation each time in the interrupt
-  triggerFilterTime = (int)(MICROS_PER_SEC / (MAX_RPM / 60U * configPage4.triggerTeeth)); //Trigger filter time is the shortest possible time (in uS) that there can be between crank teeth (ie at max RPM). Any pulses that occur faster than this time will be discarded as noise
+  triggerFilterTime = (int)(MICROS_PER_SEC / (MAX_RPM / 60U * 36)); //Trigger filter time is the shortest possible time (in uS) that there can be between crank teeth (ie at max RPM). Any pulses that occur faster than this time will be discarded as noise
   BIT_CLEAR(decoderState, BIT_DECODER_2ND_DERIV);
   BIT_CLEAR(decoderState, BIT_DECODER_IS_SEQUENTIAL);
   BIT_SET(decoderState, BIT_DECODER_HAS_SECONDARY);
@@ -3686,7 +3686,7 @@ void triggerSetup_ThirtySixMinus21(void)
 {
   triggerToothAngle = 10; //The number of degrees that passes from tooth to tooth
   triggerActualTeeth = 33; //The number of physical teeth on the wheel. Doing this here saves us a calculation each time in the interrupt. Not Used
-  triggerFilterTime = (MICROS_PER_SEC / (MAX_RPM / 60U * configPage4.triggerTeeth)); //Trigger filter time is the shortest possible time (in uS) that there can be between crank teeth (ie at max RPM). Any pulses that occur faster than this time will be discarded as noise
+  triggerFilterTime = (MICROS_PER_SEC / (MAX_RPM / 60U * 36)); //Trigger filter time is the shortest possible time (in uS) that there can be between crank teeth (ie at max RPM). Any pulses that occur faster than this time will be discarded as noise
   BIT_CLEAR(decoderState, BIT_DECODER_2ND_DERIV);
   BIT_CLEAR(decoderState, BIT_DECODER_IS_SEQUENTIAL);
   BIT_SET(decoderState, BIT_DECODER_HAS_SECONDARY);