diff --git a/src/database.rs b/src/database.rs
index e1941c0..31c1b21 100644
--- a/src/database.rs
+++ b/src/database.rs
@@ -31,6 +31,7 @@ pub struct Entry {
 }
 
 #[derive(Debug, Clone, PartialEq, Serialize, Deserialize)]
+#[serde(tag = "t", content = "c")]
 pub enum EntryValue {
     Value(serde_json::Value),
     Address(Address),