diff --git a/Firmware/ultralcd.cpp b/Firmware/ultralcd.cpp
index 59dd07415..420fb602b 100644
--- a/Firmware/ultralcd.cpp
+++ b/Firmware/ultralcd.cpp
@@ -1783,6 +1783,7 @@ bool shouldPreheatOnlyNozzle() {
         case FilamentAction::UnLoad:
         case FilamentAction::MmuLoad:
         case FilamentAction::MmuUnLoad:
+        case FilamentAction::MmuLoadingTest:
         case FilamentAction::MmuEject:
         case FilamentAction::MmuCut:
             return true;