diff --git a/Aircraft/c172p/c172p.xml b/Aircraft/c172p/c172p.xml
index c19b3fb53..5df3959f6 100644
--- a/Aircraft/c172p/c172p.xml
+++ b/Aircraft/c172p/c172p.xml
@@ -190,8 +190,7 @@
        INPUT         fcs/roll-trim-sum
        MIN          -20
        MAX           15
-       INVERT
-       GAIN          0.01745
+       GAIN         -0.01745
        OUTPUT        fcs/right-aileron-pos-rad
      </COMPONENT>
      <COMPONENT NAME="Yaw Trim Sum" TYPE="SUMMER">