diff --git a/radio/src/gui/common/colorlcd/draw_functions.cpp b/radio/src/gui/common/colorlcd/draw_functions.cpp
index c75ae824e..3fe07f0e6 100644
--- a/radio/src/gui/common/colorlcd/draw_functions.cpp
+++ b/radio/src/gui/common/colorlcd/draw_functions.cpp
@@ -202,6 +202,11 @@ void drawSensorCustomValue(coord_t x, coord_t y, uint8_t sensor, int32_t value,
     return;
   }
 
+  if (IS_FAI_FORBIDDEN(MIXSRC_FIRST_TELEM + 3 * sensor)) {
+    lcdDrawText(x, y, "FAI mode", flags);
+    return;
+  }
+
   TelemetryItem & telemetryItem = telemetryItems[sensor];
   TelemetrySensor & telemetrySensor = g_model.telemetrySensors[sensor];
 
diff --git a/radio/src/gui/common/stdlcd/draw_functions.cpp b/radio/src/gui/common/stdlcd/draw_functions.cpp
index 1bcf7286c..524b06a7b 100644
--- a/radio/src/gui/common/stdlcd/draw_functions.cpp
+++ b/radio/src/gui/common/stdlcd/draw_functions.cpp
@@ -353,6 +353,11 @@ void drawSensorCustomValue(coord_t x, coord_t y, uint8_t sensor, int32_t value,
     return;
   }
 
+  if (IS_FAI_FORBIDDEN(MIXSRC_FIRST_TELEM + 3 * sensor)) {
+    lcdDrawText(x, y, "FAI mode", flags);
+    return;
+  }
+
   TelemetryItem & telemetryItem = telemetryItems[sensor];
   TelemetrySensor & telemetrySensor = g_model.telemetrySensors[sensor];
 
diff --git a/radio/src/options.h b/radio/src/options.h
index e8bf634c1..b9d2a0075 100644
--- a/radio/src/options.h
+++ b/radio/src/options.h
@@ -22,7 +22,7 @@
 #ifndef OPENTX_OPTIONS_H
 #define OPENTX_OPTIONS_H
 
-static const char * options[] = {
+static const char * const options[] = {
 #if defined(AUTOUPDATE)
   "autoupdate",
 #endif
@@ -33,10 +33,10 @@ static const char * options[] = {
   "eu",
 #endif
 #if defined(FAI)
-  "faimode",
+  "FAImode",
 #endif
 #if defined(FAI_CHOICE)
-  "faichoice",
+  "FAIchoice",
 #endif
 #if defined(MODULE_PROTOCOL_FLEX)
   "flexr9m",