diff --git a/src/yaml.rs b/src/yaml.rs
index 964a184..28d280f 100644
--- a/src/yaml.rs
+++ b/src/yaml.rs
@@ -207,7 +207,8 @@ impl fmt::Display for PrintExpr<'_> {
 
             // All these other types can simply be serialized as is.
             Expr::Str(_) | Expr::Float(_) | Expr::Integer(_) | Expr::Bool(_) => {
-                let out = serde_yaml::to_string(&self.0).expect("string serialization to YAML failed");
+                let out = serde_yaml::to_string(&self.0)
+                    .expect("string serialization to YAML failed");
 
                 // Unfortunately, `serde_yaml` cannot serialize these values on its own
                 // without embedding them in a full document (starting with `---` and
diff --git a/tests/general.rs b/tests/general.rs
index 493f689..2d928d0 100644
--- a/tests/general.rs
+++ b/tests/general.rs
@@ -240,7 +240,9 @@ fn full() {
                                 kind: meta::FieldKind::Leaf {
                                     env: Some("ENV_TEST_FULL_2"),
                                     kind: meta::LeafKind::Required {
-                                        default: Some(meta::Expr::Integer(meta::Integer::U16(8080))),
+                                        default: Some(
+                                            meta::Expr::Integer(meta::Integer::U16(8080))
+                                        ),
                                     },
                                 },
                             },