diff --git a/lib/kiba/extend/transforms/deduplicate.rb b/lib/kiba/extend/transforms/deduplicate.rb
index 1e46989e0..83d1a296e 100644
--- a/lib/kiba/extend/transforms/deduplicate.rb
+++ b/lib/kiba/extend/transforms/deduplicate.rb
@@ -366,7 +366,7 @@ def get_value_frequency(fv)
         # Used in pipeline as:
         #
         # ```
-        # transform Deduplicate::Table, fields: :combined, delete_field: true
+        # transform Deduplicate::Table, field: :combined, delete_field: true
         # ```
         #
         # Results in: