diff --git a/xsd-parser/src/generator/enum.rs b/xsd-parser/src/generator/enum.rs
index d314e72d..cfd48270 100644
--- a/xsd-parser/src/generator/enum.rs
+++ b/xsd-parser/src/generator/enum.rs
@@ -19,7 +19,7 @@ pub trait EnumGenerator {
         );
 
         format!(
-            "{comment}{macros}\n\
+            "{comment}{macros}\
             pub enum {name} {{\n\
                 {cases}\n\
                 {indent}__Unknown__({typename}),\n\
@@ -61,22 +61,24 @@ pub trait EnumGenerator {
     }
 
     fn macros(&self, entity: &Enum, gen: &Generator) -> Cow<'static, str> {
+        let allows = "#[allow(non_camel_case_types, clippy::upper_case_acronyms)]\n";
+
         if entity.source == EnumSource::Union {
-            return "#[derive(PartialEq, Debug, UtilsUnionSerDe)]".into();
+            return format!("{allows}#[derive(PartialEq, Debug, UtilsUnionSerDe)]").into();
         }
 
-        let derives = "#[derive(PartialEq, Debug, YaSerialize, YaDeserialize)]";
+        let derives = "#[derive(PartialEq, Debug, YaSerialize, YaDeserialize)]\n";
         let tns = gen.target_ns.borrow();
         match tns.as_ref() {
             Some(tn) => match tn.name() {
                 Some(name) => format!(
-                    "{derives}#[yaserde(prefix = \"{prefix}\", namespace = \"{prefix}: {uri}\")]\n",
+                    "{allows}{derives}#[yaserde(prefix = \"{prefix}\", namespace = \"{prefix}: {uri}\")]\n",
                     derives = derives,
                     prefix = name,
                     uri = tn.uri()
                 ),
                 None => format!(
-                    "{derives}#[yaserde(namespace = \"{uri}\")]\n",
+                    "{allows}{derives}#[yaserde(namespace = \"{uri}\")]\n",
                     derives = derives,
                     uri = tn.uri()
                 ),
diff --git a/xsd-parser/src/generator/enum_case.rs b/xsd-parser/src/generator/enum_case.rs
index a5580db8..bd99621d 100644
--- a/xsd-parser/src/generator/enum_case.rs
+++ b/xsd-parser/src/generator/enum_case.rs
@@ -1,8 +1,10 @@
 use crate::{
-    generator::{default::default_format_type, utils::split_name, Generator},
+    generator::{utils::split_name, Generator},
     parser::types::{EnumCase, EnumSource},
 };
 
+use super::utils::{filter_type_name, sanitize};
+
 pub trait EnumCaseGenerator {
     fn generate(&self, entity: &EnumCase, gen: &Generator) -> String {
         let typename = if entity.type_name.is_some() {
@@ -20,12 +22,8 @@ pub trait EnumCaseGenerator {
         )
     }
 
-    fn get_name(&self, entity: &EnumCase, gen: &Generator) -> String {
-        default_format_type(entity.name.as_str(), &gen.target_ns.borrow())
-            .split("::")
-            .last()
-            .unwrap()
-            .to_string()
+    fn get_name(&self, entity: &EnumCase, _: &Generator) -> String {
+        sanitize(filter_type_name(entity.name.split(':').last().unwrap_or(&entity.name.to_owned())))
     }
 
     fn get_type_name(&self, entity: &EnumCase, gen: &Generator) -> String {
diff --git a/xsd-parser/tests/enumeration/expected.rs b/xsd-parser/tests/enumeration/expected.rs
index c74af0e3..e9995eb9 100644
--- a/xsd-parser/tests/enumeration/expected.rs
+++ b/xsd-parser/tests/enumeration/expected.rs
@@ -1,12 +1,10 @@
+#[allow(non_camel_case_types, clippy::upper_case_acronyms)]
 #[derive(PartialEq, Debug, YaSerialize, YaDeserialize)]
 #[yaserde(prefix = "tns", namespace = "tns: http://example.com")]
 pub enum FooType {
-    #[yaserde(rename = "OFF")]
-    Off,
-    #[yaserde(rename = "ON")]
-    On,
-    #[yaserde(rename = "AUTO")]
-    Auto,
+    OFF,
+    ON,
+    AUTO,
     __Unknown__(String),
 }
 
@@ -17,9 +15,24 @@ impl Default for FooType {
 }
 impl Validate for FooType {}
 
+#[allow(non_camel_case_types, clippy::upper_case_acronyms)]
+#[derive(PartialEq, Debug, YaSerialize, YaDeserialize)]
+#[yaserde(prefix = "tns", namespace = "tns: http://example.com")]
+pub enum FooType1 {
+    OFF,
+    ON,
+    On,
+    __Unknown__(String),
+}
+
+impl Default for FooType1 {
+    fn default() -> FooType1 {
+        Self::__Unknown__("No valid variants".into())
+    }
+}
+impl Validate for FooType1 {}
 
 #[derive(Default, PartialEq, Debug, UtilsTupleIo, UtilsDefaultSerde)]
 pub struct FooType2(pub String);
 
 impl Validate for FooType2 {}
-
diff --git a/xsd-parser/tests/enumeration/input.xsd b/xsd-parser/tests/enumeration/input.xsd
index 10193155..8a19a135 100644
--- a/xsd-parser/tests/enumeration/input.xsd
+++ b/xsd-parser/tests/enumeration/input.xsd
@@ -12,6 +12,14 @@
         </xs:restriction>
     </xs:simpleType>
 
+    <xs:simpleType name="FooType1">
+        <xs:restriction base="xs:string">
+            <xs:enumeration value="OFF"/>
+            <xs:enumeration value="ON"/>
+            <xs:enumeration value="On"/>
+        </xs:restriction>
+    </xs:simpleType>
+
     <xs:simpleType name="FooType2">
         <xs:restriction base="xs:string">
             <xs:enumeration value="xs:OFF"/>
diff --git a/xsd-parser/tests/enumeration/mod.rs b/xsd-parser/tests/enumeration/mod.rs
index 28290037..0b83561d 100644
--- a/xsd-parser/tests/enumeration/mod.rs
+++ b/xsd-parser/tests/enumeration/mod.rs
@@ -16,7 +16,7 @@ fn deserialization_works() {
 
     let de: expected::FooType = yaserde::de::from_str(ser).unwrap();
 
-    assert_eq!(de, expected::FooType::Auto);
+    assert_eq!(de, expected::FooType::AUTO);
 }
 
 #[test]
diff --git a/xsd-parser/tests/union/expected.rs b/xsd-parser/tests/union/expected.rs
index 47202c6f..1af13131 100644
--- a/xsd-parser/tests/union/expected.rs
+++ b/xsd-parser/tests/union/expected.rs
@@ -1,7 +1,8 @@
+#[allow(non_camel_case_types, clippy::upper_case_acronyms)]
 #[derive(PartialEq, Debug, UtilsUnionSerDe)]
 pub enum FooType {
-    Int(i32),
-    String(String),
+    int(i32),
+    string(String),
     __Unknown__(String),
 }
 
diff --git a/xsd-parser/tests/union/mod.rs b/xsd-parser/tests/union/mod.rs
index 8178cbcf..c5e36147 100644
--- a/xsd-parser/tests/union/mod.rs
+++ b/xsd-parser/tests/union/mod.rs
@@ -13,7 +13,7 @@ fn deserialization_works() {
 
     let de: expected::FooType = yaserde::de::from_str(ser).unwrap();
 
-    assert_eq!(de, expected::FooType::String("string".to_string()));
+    assert_eq!(de, expected::FooType::string("string".to_string()));
 }
 
 #[test]