diff --git a/candle-nn/src/activation.rs b/candle-nn/src/activation.rs
index 772548a01a..30f65de08a 100644
--- a/candle-nn/src/activation.rs
+++ b/candle-nn/src/activation.rs
@@ -1,9 +1,8 @@
 //! Activation Functions
 //!
 use candle::{Result, Tensor};
-use serde::Deserialize;
 
-#[derive(Debug, Clone, Copy, PartialEq, Deserialize, Default)]
+#[derive(Debug, Clone, Copy, PartialEq, serde::Deserialize, serde::Serialize, Default)]
 #[serde(rename_all = "lowercase")]
 pub enum Activation {
     #[default]