diff --git a/src/main/io/rc_controls.c b/src/main/io/rc_controls.c
index 79599741c..39f78c3db 100644
--- a/src/main/io/rc_controls.c
+++ b/src/main/io/rc_controls.c
@@ -268,6 +268,10 @@ static const adjustmentConfig_t defaultAdjustmentConfigs[ADJUSTMENT_FUNCTION_COU
         .adjustmentFunction = ADJUSTMENT_RC_RATE,
         .step = 1
     },
+    {
+        .adjustmentFunction = ADJUSTMENT_RC_EXPO,
+        .step = 1
+    },
     {
         .adjustmentFunction = ADJUSTMENT_PITCH_ROLL_RATE,
         .step = 1
@@ -316,6 +320,11 @@ void applyAdjustment(controlRateConfig_t *controlRateConfig, uint8_t adjustmentF
             controlRateConfig->rcRate8 = constrain(newValue, 0, 250); // FIXME magic numbers repeated in serial_cli.c
             generatePitchRollCurve(controlRateConfig);
         break;
+        case ADJUSTMENT_RC_EXPO:
+            newValue = (int)controlRateConfig->rcExpo8 + delta;
+            controlRateConfig->rcExpo8 = constrain(newValue, 0, 100); // FIXME magic numbers repeated in serial_cli.c
+            generatePitchRollCurve(controlRateConfig);
+            break;
         case ADJUSTMENT_PITCH_ROLL_RATE:
             newValue = (int)controlRateConfig->rollPitchRate + delta;
             controlRateConfig->rollPitchRate = constrain(newValue, 0, 100); // FIXME magic numbers repeated in serial_cli.c
diff --git a/src/main/io/rc_controls.h b/src/main/io/rc_controls.h
index d7c0ce344..b888e58ec 100644
--- a/src/main/io/rc_controls.h
+++ b/src/main/io/rc_controls.h
@@ -136,10 +136,11 @@ void updateActivatedModes(modeActivationCondition_t *modeActivationConditions);
 typedef enum {
     ADJUSTMENT_NONE = 0,
     ADJUSTMENT_RC_RATE,
-    ADJUSTMENT_PITCH_ROLL_RATE
+    ADJUSTMENT_RC_EXPO,
+    ADJUSTMENT_PITCH_ROLL_RATE,
 } adjustmentFunction_e;
 
-#define ADJUSTMENT_FUNCTION_COUNT 3
+#define ADJUSTMENT_FUNCTION_COUNT 4
 
 typedef struct adjustmentConfig_s {
     uint8_t adjustmentFunction;