diff --git a/source/geo.rst b/source/geo.rst
index a3d148626..943521118 100644
--- a/source/geo.rst
+++ b/source/geo.rst
@@ -16,7 +16,7 @@ The format of the image geolocation file is simple.
 File format::
 
     <projection>
-    image_name geo_x geo_y [geo_z] [omega (degrees)] [phi (degrees)] [kappa (degrees)] [horz accuracy (meters)] [vert accuracy (meters)] [extras...]
+    image_name geo_x geo_y [geo_z] [yaw (degrees)] [pitch (degrees)] [roll (degrees)] [horz accuracy (meters)] [vert accuracy (meters)] [extras...]
     ...
 
 Example::