diff --git a/src/lib.rs b/src/lib.rs
index f437435..36e1a3b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -207,7 +207,7 @@ mod tests {
 
     #[test]
     fn test_serialization() {
-        let key = FuzzyMetaTagKeyPair::generate(16);
+        let key = FuzzyMetaTagKeyPair::generate(24);
         let tag = key.public_key.generate_tag();
         let detection_key = key.extract(10);
         println!("{}", serde_json::to_string(&tag).unwrap());