diff --git a/tools/writer/config/img.params b/tools/writer/config/img.params
index 5eaa0e1..a97b2e0 100644
--- a/tools/writer/config/img.params
+++ b/tools/writer/config/img.params
@@ -22,7 +22,7 @@ in_right:
       model: 0
       coeffs: [ -5.1012886039889305e-01, 3.8764476500996770e-01, 0., 0.,
           0. ]
-ex_left_to_right:
+ex_right_to_left:
    rotation: [ 9.9701893306553813e-01, -9.5378124886236681e-04,
        -7.7151392794850615e-02, 1.4493996762830500e-03,
        9.9997867219985104e-01, 6.3682325649414354e-03,