diff --git a/DCC.cpp b/DCC.cpp
index abdee73..36d305d 100644
--- a/DCC.cpp
+++ b/DCC.cpp
@@ -576,9 +576,11 @@ void DCC::setLocoId(int id,ACK_CALLBACK callback) {
 
 void DCC::forgetLoco(int cab) {  // removes any speed reminders for this loco
   setThrottle2(cab,1); // ESTOP this loco if still on track
-  int reg=lookupSpeedTable(cab);
-  if (reg>=0) speedTable[reg].loco=0;
-  setThrottle2(cab,1); // ESTOP if this loco still on track
+  int reg=lookupSpeedTable(cab, false);
+  if (reg>=0) {
+    speedTable[reg].loco=0;
+    setThrottle2(cab,1); // ESTOP if this loco still on track
+  }
 }
 void DCC::forgetAllLocos() {  // removes all speed reminders
   setThrottle2(0,1); // ESTOP all locos still on track