diff --git a/steps/interpolate_visibilities.cwl b/steps/interpolate_visibilities.cwl
index 20401f721209a346853ee27e0fca6789f8b9f13a..91d5f5d32c5769b8b8cf6ff3ce372c92df0d52a6 100644
--- a/steps/interpolate_visibilities.cwl
+++ b/steps/interpolate_visibilities.cwl
@@ -45,6 +45,6 @@ outputs:
     outputBinding:
       glob: $(inputs.msout_name)
 label: interpolate_visibilities
-hint:
+hints:
   - class: DockerRequirement
     dockerPull: lofar/lofar-pipeline