diff --git a/Marlin/src/module/temperature.cpp b/Marlin/src/module/temperature.cpp
index 09c5ef0cdf..fa960443ca 100644
--- a/Marlin/src/module/temperature.cpp
+++ b/Marlin/src/module/temperature.cpp
@@ -1428,7 +1428,7 @@ int16_t Temperature::getHeaterPower(const heater_id_t heater_id) {
       #define AUTOFAN_CASE(N) TERN(HAS_AUTO_FAN_##N, _AUTOFAN_CASE, _AUTOFAN_NOT)(N)
 
       switch (f) {
-        REPEAT(8, AUTOFAN_CASE)
+        REPEAT(HOTENDS, AUTOFAN_CASE)
         #if HAS_AUTO_CHAMBER_FAN && !AUTO_CHAMBER_IS_E
           case CHAMBER_FAN_INDEX: _UPDATE_AUTO_FAN(CHAMBER, fan_on, CHAMBER_AUTO_FAN_SPEED); break;
         #endif