diff --git a/Marlin/src/lcd/extensible_ui/ui_api.cpp b/Marlin/src/lcd/extensible_ui/ui_api.cpp
index dc3fc731ce..fc6c47e267 100644
--- a/Marlin/src/lcd/extensible_ui/ui_api.cpp
+++ b/Marlin/src/lcd/extensible_ui/ui_api.cpp
@@ -884,7 +884,7 @@ namespace ExtUI {
     #endif
       {
         #if HOTENDS
-          static constexpr int16_t heater_maxtemp[HOTENDS] = ARRAY_BY_HOTENDS(HEATER_0_MAXTEMP, HEATER_1_MAXTEMP, HEATER_2_MAXTEMP, HEATER_3_MAXTEMP, HEATER_4_MAXTEMP);
+          static constexpr int16_t heater_maxtemp[HOTENDS] = ARRAY_BY_HOTENDS(HEATER_0_MAXTEMP, HEATER_1_MAXTEMP, HEATER_2_MAXTEMP, HEATER_3_MAXTEMP, HEATER_4_MAXTEMP, HEATER_5_MAXTEMP);
           const int16_t e = heater - H0;
           thermalManager.setTargetHotend(constrain(value, 0, heater_maxtemp[e] - 15), e);
         #endif
@@ -893,7 +893,7 @@ namespace ExtUI {
 
   void setTargetTemp_celsius(float value, const extruder_t extruder) {
     #if HOTENDS
-      constexpr int16_t heater_maxtemp[HOTENDS] = ARRAY_BY_HOTENDS(HEATER_0_MAXTEMP, HEATER_1_MAXTEMP, HEATER_2_MAXTEMP, HEATER_3_MAXTEMP, HEATER_4_MAXTEMP);
+      constexpr int16_t heater_maxtemp[HOTENDS] = ARRAY_BY_HOTENDS(HEATER_0_MAXTEMP, HEATER_1_MAXTEMP, HEATER_2_MAXTEMP, HEATER_3_MAXTEMP, HEATER_4_MAXTEMP, HEATER_5_MAXTEMP);
       const int16_t e = extruder - E0;
       enableHeater(extruder);
       thermalManager.setTargetHotend(constrain(value, 0, heater_maxtemp[e] - 15), e);
diff --git a/Marlin/src/lcd/menu/menu.h b/Marlin/src/lcd/menu/menu.h
index 0b638bc47a..e34b8b18f8 100644
--- a/Marlin/src/lcd/menu/menu.h
+++ b/Marlin/src/lcd/menu/menu.h
@@ -31,7 +31,7 @@ extern int8_t encoderLine, encoderTopLine, screen_items;
 extern bool screen_changed;
 
 #if HOTENDS
-  constexpr int16_t heater_maxtemp[HOTENDS] = ARRAY_BY_HOTENDS(HEATER_0_MAXTEMP, HEATER_1_MAXTEMP, HEATER_2_MAXTEMP, HEATER_3_MAXTEMP, HEATER_4_MAXTEMP);
+  constexpr int16_t heater_maxtemp[HOTENDS] = ARRAY_BY_HOTENDS(HEATER_0_MAXTEMP, HEATER_1_MAXTEMP, HEATER_2_MAXTEMP, HEATER_3_MAXTEMP, HEATER_4_MAXTEMP, HEATER_5_MAXTEMP);
 #endif
 
 void scroll_screen(const uint8_t limit, const bool is_menu);