diff --git a/crates/nu-command/src/filters/agg_by.rs b/crates/nu-command/src/filters/agg_by.rs
index c967f9cd04..cc38d6d9a8 100644
--- a/crates/nu-command/src/filters/agg_by.rs
+++ b/crates/nu-command/src/filters/agg_by.rs
@@ -39,6 +39,7 @@ impl Command for AggBy {
                 "Column name to calculate the average from",
                 Some('a'),
             )
+            .allow_variants_without_examples(true)
             .category(Category::Filters)
     }