diff --git a/clippy_lints/src/item_name_repetitions.rs b/clippy_lints/src/item_name_repetitions.rs
index 693e022dffba..1107946f538b 100644
--- a/clippy_lints/src/item_name_repetitions.rs
+++ b/clippy_lints/src/item_name_repetitions.rs
@@ -212,7 +212,7 @@ impl ItemNameRepetitions {
             check_enum_end(cx, item_name, var);
         }
 
-        self.check_enum_common_affix(cx, item, def);
+        Self::check_enum_common_affix(cx, item, def);
     }
 
     /// Lint the names of struct fields against the name of the struct.
@@ -225,7 +225,7 @@ impl ItemNameRepetitions {
         self.check_struct_common_affix(cx, item, fields);
     }
 
-    fn check_enum_common_affix(&self, cx: &LateContext<'_>, item: &Item<'_>, def: &EnumDef<'_>) {
+    fn check_enum_common_affix(cx: &LateContext<'_>, item: &Item<'_>, def: &EnumDef<'_>) {
         let first = match def.variants.first() {
             Some(variant) => variant.ident.name.as_str(),
             None => return,