diff --git a/waku/src/general/mod.rs b/waku/src/general/mod.rs
index 102b6a7..18f9dc1 100644
--- a/waku/src/general/mod.rs
+++ b/waku/src/general/mod.rs
@@ -2,7 +2,7 @@
 use std::fmt::{Display, Formatter};
 use std::str::FromStr;
 // crates
-use serde::{Deserialize, Deserializer, Serialize, Serializer};
+use serde::{de::Error, Deserialize, Deserializer, Serialize, Serializer};
 use sscanf::{scanf, RegexRepresentation};
 // internal