diff --git a/companion/src/firmwares/modeldata.cpp b/companion/src/firmwares/modeldata.cpp
index 7657e2798..04552a6e4 100644
--- a/companion/src/firmwares/modeldata.cpp
+++ b/companion/src/firmwares/modeldata.cpp
@@ -1381,7 +1381,6 @@ void ModelData::sortMixes()
 
 void ModelData::updateResetParam(CustomFunctionData * cfd)
 {
-
   if (cfd->func != FuncReset)
     return;
 
@@ -1392,6 +1391,11 @@ void ModelData::updateResetParam(CustomFunctionData * cfd)
 
   switch (updRefInfo.type)
   {
+    case REF_UPD_TYPE_TIMER:
+      if (cfd->param < 0 || cfd->param > 2)
+        return;
+      idxAdj = -2;   //  reverse earlier offset required for rawsource
+      break;
     case REF_UPD_TYPE_SENSOR:
       idxAdj = 5/*3 Timers + Flight + Telemetery*/ + firmware->getCapability(RotaryEncoders);
       if (cfd->param < idxAdj || cfd->param > (idxAdj + firmware->getCapability(Sensors)))
@@ -1401,6 +1405,8 @@ void ModelData::updateResetParam(CustomFunctionData * cfd)
       return;
   }
 
+  qDebug() << "index1" << updRefInfo.index1 << "shift:" << updRefInfo.shift << "cfd->param:" << cfd->param << "idxAdj:" << idxAdj;
+
   switch (updRefInfo.action)
   {
     case REF_UPD_ACT_CLEAR: