diff --git a/key_files/fov.yml b/key_files/fov.yml
index 1e820b8..9c3de7f 100644
--- a/key_files/fov.yml
+++ b/key_files/fov.yml
@@ -5,7 +5,7 @@ units: PSU m/s # Sv
 dimensions: 1
 model: NEMO
 modelFiles: $BASEDIR_MODEL/$JOBID/nemo_$JOBIDo_1y_*_grid-V.nc
-model_vars: vso
+model_vars: vo 
 model_convert:
   path: bgcval2/functions/circulation.py
   function: fov_sa