diff --git a/src/setup/txt_joyaxis.c b/src/setup/txt_joyaxis.c
index 498e5294..a863704d 100644
--- a/src/setup/txt_joyaxis.c
+++ b/src/setup/txt_joyaxis.c
@@ -32,7 +32,7 @@
 
 #define JOYSTICK_AXIS_WIDTH 20
 
-static char *CalibrationLabel(txt_joystick_axis_t *joystick_axis)
+static const char *CalibrationLabel(txt_joystick_axis_t *joystick_axis)
 {
     switch (joystick_axis->config_stage)
     {