diff --git a/platformio.ini b/platformio.ini
index 1275e43125..e49808a70f 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -301,7 +301,7 @@ TEMP_STAT_LEDS          = src_filter=+<src/feature/leds/tempstat.cpp>
 MAX7219_DEBUG           = src_filter=+<src/feature/max7219.cpp> +<src/gcode/feature/leds/M7219.cpp>
 MIXING_EXTRUDER         = src_filter=+<src/feature/mixing.cpp> +<src/gcode/feature/mixing/M163-M165.cpp>
 HAS_PRUSA_MMU1          = src_filter=+<src/feature/mmu/mmu.cpp>
-HAS_PRUSA_MMU2S?        = src_filter=+<src/feature/mmu/mmu2.cpp> +<src/gcode/feature/prusa_MMU2>
+HAS_PRUSA_MMU2          = src_filter=+<src/feature/mmu/mmu2.cpp> +<src/gcode/feature/prusa_MMU2>
 PASSWORD_FEATURE        = src_filter=+<src/feature/password> +<src/gcode/feature/password>
 ADVANCED_PAUSE_FEATURE  = src_filter=+<src/feature/pause.cpp> +<src/gcode/feature/pause/M600.cpp> +<src/gcode/feature/pause/M603.cpp>
 AUTO_POWER_CONTROL      = src_filter=+<src/feature/power.cpp>