diff --git a/CHANGELOG.md b/CHANGELOG.md
index 74053d4e2..57b71b6bd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -50,6 +50,7 @@
 
 * nostr: fix `TagStanderd::to_vec` ([nanikamado])
 * nostr: fix broken intra doc links ([Yuki Kishimoto])
+* nostr: fix `JsonUtil::try_as_pretty_json` method ([Yuki Kishimoto])
 
 ### Removed
 
diff --git a/crates/nostr/src/util/mod.rs b/crates/nostr/src/util/mod.rs
index ed1e790f5..c20334dd7 100644
--- a/crates/nostr/src/util/mod.rs
+++ b/crates/nostr/src/util/mod.rs
@@ -85,7 +85,7 @@ where
     /// Serialize as pretty JSON string
     #[inline]
     fn try_as_pretty_json(&self) -> Result<String, Self::Err> {
-        Ok(serde_json::to_string(self)?)
+        Ok(serde_json::to_string_pretty(self)?)
     }
 }