diff --git a/crates/nu-command/src/math/abs.rs b/crates/nu-command/src/math/abs.rs
index 574a6b3bf8..75dae0630e 100644
--- a/crates/nu-command/src/math/abs.rs
+++ b/crates/nu-command/src/math/abs.rs
@@ -14,10 +14,15 @@ impl Command for SubCommand {
         Signature::build("math abs")
             .input_output_types(vec![
                 (Type::Number, Type::Number),
+                (Type::Duration, Type::Duration),
                 (
                     Type::List(Box::new(Type::Number)),
                     Type::List(Box::new(Type::Number)),
                 ),
+                (
+                    Type::List(Box::new(Type::Duration)),
+                    Type::List(Box::new(Type::Duration)),
+                ),
             ])
             .allow_variants_without_examples(true)
             .category(Category::Math)