diff --git a/ruff_macros/src/rule_code_prefix.rs b/ruff_macros/src/rule_code_prefix.rs
index 3bdeca625a..6cf2210c46 100644
--- a/ruff_macros/src/rule_code_prefix.rs
+++ b/ruff_macros/src/rule_code_prefix.rs
@@ -242,19 +242,6 @@ fn generate_impls<'a>(
         }
     });
 
-    let categories = prefix_to_codes.keys().map(|prefix_str| {
-        if prefix_str.chars().all(char::is_alphabetic)
-            && !PREFIX_REDIRECTS.contains_key(&prefix_str.as_str())
-        {
-            let prefix = Ident::new(prefix_str, Span::call_site());
-            quote! {
-                #prefix_ident::#prefix,
-            }
-        } else {
-            quote! {}
-        }
-    });
-
     quote! {
         impl #prefix_ident {
             pub fn specificity(&self) -> Specificity {
@@ -276,7 +263,5 @@ fn generate_impls<'a>(
                 }
             }
         }
-
-        pub const CATEGORIES: &[#prefix_ident] = &[#(#categories)*];
     }
 }
diff --git a/src/settings/mod.rs b/src/settings/mod.rs
index f534475064..5be43f5e92 100644
--- a/src/settings/mod.rs
+++ b/src/settings/mod.rs
@@ -13,7 +13,7 @@ use rustc_hash::FxHashSet;
 use self::hashable::{HashableGlobMatcher, HashableGlobSet, HashableHashSet, HashableRegex};
 use self::rule_table::RuleTable;
 use crate::cache::cache_dir;
-use crate::registry::{Rule, RuleSelector, Specificity, CATEGORIES, INCOMPATIBLE_CODES};
+use crate::registry::{Rule, RuleSelector, Specificity, INCOMPATIBLE_CODES};
 use crate::rules::{
     flake8_annotations, flake8_bandit, flake8_bugbear, flake8_builtins, flake8_errmsg,
     flake8_implicit_str_concat, flake8_import_conventions, flake8_pytest_style, flake8_quotes,
@@ -240,7 +240,7 @@ impl From<&Configuration> for RuleTable {
         let mut rules = RuleTable::empty();
 
         let fixable = resolve_codes([RuleCodeSpec {
-            select: config.fixable.as_deref().unwrap_or(CATEGORIES),
+            select: config.fixable.as_deref().unwrap_or(&[RuleSelector::ALL]),
             ignore: config.unfixable.as_deref().unwrap_or_default(),
         }]);