diff --git a/CHANGELOG.md b/CHANGELOG.md
index 24110bd2..06605967 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 # 8.9.0-wip
 
 - Add ignoring types that the StandardJsonPlugin should leave as a List.
+- Allow non alphanumeric characters in enum class names.
 
 # 8.8.1
 
diff --git a/built_value_generator/lib/src/enum_source_class.dart b/built_value_generator/lib/src/enum_source_class.dart
index dabdbb26..d468a811 100644
--- a/built_value_generator/lib/src/enum_source_class.dart
+++ b/built_value_generator/lib/src/enum_source_class.dart
@@ -81,8 +81,8 @@ abstract class EnumSourceClass
     if (getter == null) return null;
     var source = parsedLibrary.getElementDeclaration(getter)!.node.toSource();
     var matches = RegExp(r'static BuiltSet<' +
-            element.displayName +
-            r'> get values => (_\$\w+)\;')
+            RegExp.escape(element.displayName) +
+            r'> get values => (_\$[\w$]+)\;')
         .allMatches(source);
     return matches.isEmpty ? null : matches.first.group(1);
   }
@@ -93,8 +93,8 @@ abstract class EnumSourceClass
     if (getter == null) return null;
     var source = parsedLibrary.getElementDeclaration(getter)!.node.toSource();
     var matches = RegExp(r'static ' +
-            element.displayName +
-            r' valueOf\((?:final )?String name\) \=\> (\_\$\w+)\(name\)\;')
+            RegExp.escape(element.displayName) +
+            r' valueOf\((?:final )?String name\) \=\> (\_\$[\w$]+)\(name\)\;')
         .allMatches(source);
     return matches.isEmpty ? null : matches.first.group(1);
   }
@@ -153,9 +153,10 @@ abstract class EnumSourceClass
   }
 
   Iterable<String> _checkConstructor() {
-    var expectedCode =
-        RegExp('const $name._\\((?:final )?String name\\) : super\\(name\\);');
-    var expectedCode217 = RegExp('const $name._\\(super.name\\);');
+    var expectedCode = RegExp(
+        'const ${RegExp.escape(name)}._\\((?:final )?String name\\) : super\\(name\\);');
+    var expectedCode217 =
+        RegExp('const ${RegExp.escape(name)}._\\(super.name\\);');
     return constructors.length == 1 &&
             (constructors.single.contains(expectedCode) ||
                 constructors.single.contains(expectedCode217))
diff --git a/end_to_end_test/lib/enums.dart b/end_to_end_test/lib/enums.dart
index b9b1a31d..522a731f 100644
--- a/end_to_end_test/lib/enums.dart
+++ b/end_to_end_test/lib/enums.dart
@@ -119,3 +119,23 @@ class FallbackNumberEnum extends EnumClass {
   static BuiltSet<FallbackNumberEnum> get values => _$fbNumberValues;
   static FallbackNumberEnum valueOf(String name) => _$fbNumberValueOf(name);
 }
+
+class EnumWith$Dollar_UnderScore extends EnumClass {
+  static Serializer<EnumWith$Dollar_UnderScore> get serializer =>
+      _$enumWith$DollarUnderScoreSerializer;
+
+  @BuiltValueEnumConst(wireNumber: 0)
+  static const EnumWith$Dollar_UnderScore $value =
+      _$dollar_UnderScoreEnum$Value;
+
+  @BuiltValueEnumConst(wireNumber: -1, fallback: true)
+  static const EnumWith$Dollar_UnderScore value$ =
+      _$dollar_UnderScoreEnumValue$;
+
+  const EnumWith$Dollar_UnderScore._(String name) : super(name);
+
+  static BuiltSet<EnumWith$Dollar_UnderScore> get values =>
+      _$enum$Dollar_UnderScoreValues;
+  static EnumWith$Dollar_UnderScore valueOf(String name) =>
+      _$enum$Dollar_UnderScoreValueOf(name);
+}
diff --git a/end_to_end_test/lib/enums.g.dart b/end_to_end_test/lib/enums.g.dart
index 3782f7bd..391ccd39 100644
--- a/end_to_end_test/lib/enums.g.dart
+++ b/end_to_end_test/lib/enums.g.dart
@@ -176,6 +176,28 @@ final BuiltSet<FallbackNumberEnum> _$fbNumberValues =
   _$fbNumberNo,
 ]);
 
+const EnumWith$Dollar_UnderScore _$dollar_UnderScoreEnum$Value =
+    const EnumWith$Dollar_UnderScore._('\$value');
+const EnumWith$Dollar_UnderScore _$dollar_UnderScoreEnumValue$ =
+    const EnumWith$Dollar_UnderScore._('value\$');
+
+EnumWith$Dollar_UnderScore _$enum$Dollar_UnderScoreValueOf(String name) {
+  switch (name) {
+    case '\$value':
+      return _$dollar_UnderScoreEnum$Value;
+    case 'value\$':
+      return _$dollar_UnderScoreEnumValue$;
+    default:
+      return _$dollar_UnderScoreEnumValue$;
+  }
+}
+
+final BuiltSet<EnumWith$Dollar_UnderScore> _$enum$Dollar_UnderScoreValues =
+    new BuiltSet<EnumWith$Dollar_UnderScore>(const <EnumWith$Dollar_UnderScore>[
+  _$dollar_UnderScoreEnum$Value,
+  _$dollar_UnderScoreEnumValue$,
+]);
+
 Serializer<TestEnum> _$testEnumSerializer = new _$TestEnumSerializer();
 Serializer<WireNameEnum> _$wireNameEnumSerializer =
     new _$WireNameEnumSerializer();
@@ -187,6 +209,8 @@ Serializer<FallbackEnum> _$fallbackEnumSerializer =
     new _$FallbackEnumSerializer();
 Serializer<FallbackNumberEnum> _$fallbackNumberEnumSerializer =
     new _$FallbackNumberEnumSerializer();
+Serializer<EnumWith$Dollar_UnderScore> _$enumWith$DollarUnderScoreSerializer =
+    new _$EnumWith$Dollar_UnderScoreSerializer();
 
 class _$TestEnumSerializer implements PrimitiveSerializer<TestEnum> {
   @override
@@ -335,4 +359,33 @@ class _$FallbackNumberEnumSerializer
           _fromWire[serialized] ?? (serialized is String ? serialized : ''));
 }
 
+class _$EnumWith$Dollar_UnderScoreSerializer
+    implements PrimitiveSerializer<EnumWith$Dollar_UnderScore> {
+  static const Map<String, Object> _toWire = const <String, Object>{
+    '\$value': 0,
+    'value\$': -1,
+  };
+  static const Map<Object, String> _fromWire = const <Object, String>{
+    0: '\$value',
+    -1: 'value\$',
+  };
+
+  @override
+  final Iterable<Type> types = const <Type>[EnumWith$Dollar_UnderScore];
+  @override
+  final String wireName = 'EnumWith\$Dollar_UnderScore';
+
+  @override
+  Object serialize(Serializers serializers, EnumWith$Dollar_UnderScore object,
+          {FullType specifiedType = FullType.unspecified}) =>
+      _toWire[object.name] ?? object.name;
+
+  @override
+  EnumWith$Dollar_UnderScore deserialize(
+          Serializers serializers, Object serialized,
+          {FullType specifiedType = FullType.unspecified}) =>
+      EnumWith$Dollar_UnderScore.valueOf(
+          _fromWire[serialized] ?? (serialized is String ? serialized : ''));
+}
+
 // ignore_for_file: deprecated_member_use_from_same_package,type=lint