diff --git a/stm-firmware/Makefile b/stm-firmware/Makefile
index cfbb2c2..44161ac 100644
--- a/stm-firmware/Makefile
+++ b/stm-firmware/Makefile
@@ -30,7 +30,7 @@ CFILES += adc-meas.c
 # Shellmatta
 CFILES += shellmatta/src/shellmatta.c shellmatta/src/shellmatta_autocomplete.c shellmatta/src/shellmatta_escape.c shellmatta/src/shellmatta_history.c shellmatta/src/shellmatta_utils.c shellmatta/src/shellmatta_opt.c shell.c
 INCLUDEPATH += -Ishellmatta/api
-# DEFINES += -DSHELLMATTA_STRIP_PRINTF
+DEFINES += -DSHELLMATTA_HELP_ALIAS=\"?\"
 
 # RCC Manager
 CFILES += stm-periph/clock-enable-manager.c