diff --git a/reference/speeduino.ini b/reference/speeduino.ini
index a5ed513d..711bd701 100644
--- a/reference/speeduino.ini
+++ b/reference/speeduino.ini
@@ -273,7 +273,7 @@ page = 4
       TrigEdge   = bits,   U08,      5,[0:0],    "Leading", "Trailing"
       TrigSpeed  = bits,   U08,      5,[1:1],    "Crank Speed", "Cam Speed"
       IgInv      = bits,   U08,      5,[2:2],    "Going Low",        "Going High"
-      oddfire    = bits,   U08,      5,[3:3],    "No",        "Yes"
+      unused4-5d = bits,   U08,      5,[3:3],    "No",        "Yes"
       TrigPattern= bits,   U08,      5,[4:7],    "Missing Tooth", "Basic Distributor", "Dual Wheel", "GM 7X", "4G63 / Miata / 3000GT", "GM 24X", "Jeep 2000", "Audi 135", "Honda D17", "Miata 99-05", "Mazda AU", "Non-360 Dual", "Nissan 360", "Subaru 6/7", "Daihatsu +1", "Harley EVO"
       TrigEdgeSec= bits,   U08,      6,[0:0],    "Leading", "Trailing"
       fuelPumpPin= bits  , U08,      6,[1:6],    "Board Default", "INVALID", "INVALID", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", "24", "25", "26", "27", "28", "29", "30", "31", "32", "33", "34", "35", "36", "37", "38", "39", "40", "41", "42", "43", "44", "45", "46", "47", "48", "49", "50", "51", "52", "53", "54", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID", "INVALID"
diff --git a/speeduino/globals.h b/speeduino/globals.h
index dbaf2583..fd4ee3be 100644
--- a/speeduino/globals.h
+++ b/speeduino/globals.h
@@ -399,7 +399,7 @@ struct config2 {
   byte TrigEdge : 1;
   byte TrigSpeed : 1;
   byte IgInv : 1;
-  byte oddfire : 1;
+  byte unused4_5d : 1;
   byte TrigPattern : 4;
 
   byte TrigEdgeSec : 1;