diff --git a/Marlin/src/module/settings.cpp b/Marlin/src/module/settings.cpp
index c8e5df92b3..8c3fae1393 100644
--- a/Marlin/src/module/settings.cpp
+++ b/Marlin/src/module/settings.cpp
@@ -3710,30 +3710,31 @@ void MarlinSettings::reset() {
   #if ENABLED(MPCTEMP)
 
     constexpr float _mpc_heater_power[] = MPC_HEATER_POWER;
+    static_assert(HOTENDS == COUNT(_mpc_heater_power), "MPC_HEATER_POWER requires values for all (" STRINGIFY(HOTENDS) ") hotends.");
+
     #if ENABLED(MPC_PTC)
       constexpr float _mpc_heater_alpha[] = MPC_HEATER_ALPHA;
       constexpr float _mpc_heater_reftemp[] = MPC_HEATER_REFTEMP;
+      static_assert(HOTENDS == COUNT(_mpc_heater_alpha), "MPC_HEATER_ALPHA requires values for all (" STRINGIFY(HOTENDS) ") hotends.");
+      static_assert(HOTENDS == COUNT(_mpc_heater_reftemp), "MPC_HEATER_REFTEMP requires values for all (" STRINGIFY(HOTENDS) ") hotends.");
     #endif
+
     constexpr float _mpc_block_heat_capacity[] = MPC_BLOCK_HEAT_CAPACITY;
+    static_assert(HOTENDS == COUNT(_mpc_block_heat_capacity), "MPC_BLOCK_HEAT_CAPACITY requires values for all (" STRINGIFY(HOTENDS) ") hotends.");
+
     constexpr float _mpc_sensor_responsiveness[] = MPC_SENSOR_RESPONSIVENESS;
+    static_assert(HOTENDS == COUNT(_mpc_sensor_responsiveness), "MPC_SENSOR_RESPONSIVENESS requires values for all (" STRINGIFY(HOTENDS) ") hotends.");
+
     constexpr float _mpc_ambient_xfer_coeff[] = MPC_AMBIENT_XFER_COEFF;
+    static_assert(HOTENDS == COUNT(_mpc_ambient_xfer_coeff), "MPC_AMBIENT_XFER_COEFF requires values for all (" STRINGIFY(HOTENDS) ") hotends.");
+
     #if ENABLED(MPC_INCLUDE_FAN)
       constexpr float _mpc_ambient_xfer_coeff_fan255[] = MPC_AMBIENT_XFER_COEFF_FAN255;
+      static_assert(HOTENDS == COUNT(_mpc_ambient_xfer_coeff_fan255), "MPC_AMBIENT_XFER_COEFF_FAN255 requires values for all (" STRINGIFY(HOTENDS) ") hotends.");
     #endif
-    constexpr float _filament_heat_capacity_permm[] = FILAMENT_HEAT_CAPACITY_PERMM;
 
-    static_assert(COUNT(_mpc_heater_power) == HOTENDS, "MPC_HEATER_POWER must have HOTENDS items.");
-    #if ENABLED(MPC_PTC)
-      static_assert(COUNT(_mpc_heater_alpha) == HOTENDS, "MPC_HEATER_ALPHA must have HOTENDS items.");
-      static_assert(COUNT(_mpc_heater_reftemp) == HOTENDS, "MPC_HEATER_REFTEMP must have HOTENDS items.");
-    #endif
-    static_assert(COUNT(_mpc_block_heat_capacity) == HOTENDS, "MPC_BLOCK_HEAT_CAPACITY must have HOTENDS items.");
-    static_assert(COUNT(_mpc_sensor_responsiveness) == HOTENDS, "MPC_SENSOR_RESPONSIVENESS must have HOTENDS items.");
-    static_assert(COUNT(_mpc_ambient_xfer_coeff) == HOTENDS, "MPC_AMBIENT_XFER_COEFF must have HOTENDS items.");
-    #if ENABLED(MPC_INCLUDE_FAN)
-      static_assert(COUNT(_mpc_ambient_xfer_coeff_fan255) == HOTENDS, "MPC_AMBIENT_XFER_COEFF_FAN255 must have HOTENDS items.");
-    #endif
-    static_assert(COUNT(_filament_heat_capacity_permm) == HOTENDS, "FILAMENT_HEAT_CAPACITY_PERMM must have HOTENDS items.");
+    constexpr float _filament_heat_capacity_permm[] = FILAMENT_HEAT_CAPACITY_PERMM;
+    static_assert(HOTENDS == COUNT(_filament_heat_capacity_permm), "FILAMENT_HEAT_CAPACITY_PERMM requires values for all (" STRINGIFY(HOTENDS) ") hotends.");
 
     HOTEND_LOOP() {
       MPC_t &mpc = thermalManager.temp_hotend[e].mpc;