diff --git a/ArduPlane/radio.cpp b/ArduPlane/radio.cpp
index cbdbf05876..61d56feee3 100644
--- a/ArduPlane/radio.cpp
+++ b/ArduPlane/radio.cpp
@@ -410,10 +410,10 @@ float Plane::roll_in_expo(bool use_dz) const
 
 float Plane::pitch_in_expo(bool use_dz) const
 {
-    return channel_expo(channel_pitch, g2.man_expo_roll, use_dz);
+    return channel_expo(channel_pitch, g2.man_expo_pitch, use_dz);
 }
 
 float Plane::rudder_in_expo(bool use_dz) const
 {
-    return channel_expo(channel_rudder, g2.man_expo_roll, use_dz);
+    return channel_expo(channel_rudder, g2.man_expo_rudder, use_dz);
 }