diff --git a/crates/nu-command/src/math/mode.rs b/crates/nu-command/src/math/mode.rs
index 4f1de19d4..78e783831 100644
--- a/crates/nu-command/src/math/mode.rs
+++ b/crates/nu-command/src/math/mode.rs
@@ -43,6 +43,14 @@ impl Command for SubCommand {
                     Type::List(Box::new(Type::Number)),
                     Type::List(Box::new(Type::Number)),
                 ),
+                (
+                    Type::List(Box::new(Type::Duration)),
+                    Type::List(Box::new(Type::Duration)),
+                ),
+                (
+                    Type::List(Box::new(Type::Filesize)),
+                    Type::List(Box::new(Type::Filesize)),
+                ),
                 (Type::Table(vec![]), Type::Record(vec![])),
             ])
             .allow_variants_without_examples(true)