diff --git a/src/annotate_attributes.rs b/src/annotate_attributes.rs
index 8e5e560..0072084 100644
--- a/src/annotate_attributes.rs
+++ b/src/annotate_attributes.rs
@@ -150,7 +150,7 @@ impl Processor {
                         .collect(),
                     variant: variant_str,
                 };
-                let mut existing = self.attributes.entry(attr_key).or_default();
+                let existing = self.attributes.entry(attr_key).or_default();
                 if existing.default.is_empty() {
                     existing.default = descriptions.default;
                 } else if !descriptions.default.is_empty() {
diff --git a/src/interface_index.rs b/src/interface_index.rs
index 49bdadf..ffbdd48 100644
--- a/src/interface_index.rs
+++ b/src/interface_index.rs
@@ -76,7 +76,7 @@ impl Processor {
                     continue;
                 }
                 let name = window[1].text_content();
-                let mut info = self.interfaces.entry(name).or_default();
+                let info = self.interfaces.entry(name).or_default();
                 if is_partial {
                     if let Some(id) = window[1].get_attribute(&ID) {
                         info.partials.push(id);
diff --git a/src/tag_omission.rs b/src/tag_omission.rs
index 5f5a97b..197ed12 100644
--- a/src/tag_omission.rs
+++ b/src/tag_omission.rs
@@ -75,7 +75,7 @@ impl Processor {
                 for dd in dom_utils::dt_descriptions(&dt) {
                     dom_utils::scan_dom(&dd, &mut |n| {
                         if n.is_html_element(&local_name!("code")) {
-                            let mut info = self.elements.entry(n.text_content()).or_default();
+                            let info = self.elements.entry(n.text_content()).or_default();
                             info.is_void_element = true;
                         }
                     });