diff --git a/CHANGELOG.md b/CHANGELOG.md
index f5954f3..f80181f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 #Changelog
 
+## bliss 0.6.5
+* Pretty-print JSON in the config file.
+
 ## bliss 0.6.4
 * Fix a bug in the customizable CPU number option in `library`.
 
diff --git a/Cargo.lock b/Cargo.lock
index 8ad6631..7ed3a21 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -96,7 +96,7 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bliss-audio"
-version = "0.6.4"
+version = "0.6.5"
 dependencies = [
  "anyhow",
  "bliss-audio-aubio-rs",
diff --git a/Cargo.toml b/Cargo.toml
index e32bd00..6269a52 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bliss-audio"
-version = "0.6.4"
+version = "0.6.5"
 authors = ["Polochon-street <polochonstreet@gmx.fr>"]
 edition = "2018"
 license = "GPL-3.0-only"
diff --git a/src/library.rs b/src/library.rs
index 97c3dc2..86cc96f 100644
--- a/src/library.rs
+++ b/src/library.rs
@@ -166,7 +166,7 @@ pub trait AppConfigTrait: Serialize + Sized + DeserializeOwned {
     /// using for example the various Serde libraries (`serde_yaml`, etc) -
     /// just overwrite this method.
     fn serialize_config(&self) -> Result<String> {
-        Ok(serde_json::to_string(&self)?)
+        Ok(serde_json::to_string_pretty(&self)?)
     }
 
     /// Set the number of desired cores for analysis, and write it to the
@@ -2724,7 +2724,10 @@ mod test {
     #[test]
     fn test_library_new_default_write() {
         let (library, _temp_dir, _) = setup_test_library();
-        let config_content = fs::read_to_string(&library.config.base_config().config_path).unwrap();
+        let config_content = fs::read_to_string(&library.config.base_config().config_path)
+            .unwrap()
+            .replace(' ', "")
+            .replace('\n', "");
         assert_eq!(
             config_content,
             format!(