diff --git a/yaserde_derive/src/common/field.rs b/yaserde_derive/src/common/field.rs
index c844bc5..1c9125e 100644
--- a/yaserde_derive/src/common/field.rs
+++ b/yaserde_derive/src/common/field.rs
@@ -85,7 +85,11 @@ impl YaSerdeField {
     );
 
     Ident::new(
-      &format!("__Visitor_{}_{}", label.replace(".", "_").to_camel_case(), struct_id),
+      &format!(
+        "__Visitor_{}_{}",
+        label.replace(".", "_").to_camel_case(),
+        struct_id
+      ),
       self.get_span(),
     )
   }
diff --git a/yaserde_derive/src/de/expand_struct.rs b/yaserde_derive/src/de/expand_struct.rs
index a19d19a..9dfe8f2 100644
--- a/yaserde_derive/src/de/expand_struct.rs
+++ b/yaserde_derive/src/de/expand_struct.rs
@@ -448,7 +448,11 @@ fn build_visitor_ident(label: &str, span: Span, struct_name: Option<&syn::Path>)
   );
 
   Ident::new(
-    &format!("__Visitor_{}_{}", label.replace(".", "_").to_camel_case(), struct_id),
+    &format!(
+      "__Visitor_{}_{}",
+      label.replace(".", "_").to_camel_case(),
+      struct_id
+    ),
     span,
   )
 }