diff --git a/modules/openapi-generator/src/main/resources/dart/libraries/dio/serialization/built_value/enum.mustache b/modules/openapi-generator/src/main/resources/dart/libraries/dio/serialization/built_value/enum.mustache
index e3cc6755362..0668b2e7b1d 100644
--- a/modules/openapi-generator/src/main/resources/dart/libraries/dio/serialization/built_value/enum.mustache
+++ b/modules/openapi-generator/src/main/resources/dart/libraries/dio/serialization/built_value/enum.mustache
@@ -11,7 +11,7 @@ class {{classname}} extends EnumClass {
       {{#description}}
   /// {{{.}}}
       {{/description}}
-  @BuiltValueEnumConst({{#isInteger}}wireNumber: {{{value}}}{{/isInteger}}{{^isInteger}}wireName: r{{{value}}}{{/isInteger}})
+  @BuiltValueEnumConst({{#isInteger}}wireNumber: {{{value}}}{{/isInteger}}{{#isLong}}wireNumber: {{{value}}}{{/isLong}}{{^isInteger}}{{^isLong}}wireName: r{{{value}}}{{/isLong}}{{/isInteger}})
   static const {{classname}} {{name}} = _${{name}};
     {{/enumVars}}
   {{/allowableValues}}
diff --git a/modules/openapi-generator/src/main/resources/dart/libraries/dio/serialization/built_value/enum_inline.mustache b/modules/openapi-generator/src/main/resources/dart/libraries/dio/serialization/built_value/enum_inline.mustache
index 5f5dfd49913..c6452b7f6f5 100644
--- a/modules/openapi-generator/src/main/resources/dart/libraries/dio/serialization/built_value/enum_inline.mustache
+++ b/modules/openapi-generator/src/main/resources/dart/libraries/dio/serialization/built_value/enum_inline.mustache
@@ -5,7 +5,7 @@ class {{{enumName}}} extends EnumClass {
       {{#description}}
   /// {{{.}}}
       {{/description}}
-  @BuiltValueEnumConst({{#isInteger}}wireNumber: {{{value}}}{{/isInteger}}{{^isInteger}}wireName: r{{{value}}}{{/isInteger}})
+  @BuiltValueEnumConst({{#isInteger}}wireNumber: {{{value}}}{{/isInteger}}{{#isLong}}wireNumber: {{{value}}}{{/isLong}}{{^isInteger}}{{^isLong}}wireName: r{{{value}}}{{/isLong}}{{/isInteger}})
   static const {{{enumName}}} {{name}} = _${{#lambda.camelcase}}{{{enumName}}}{{/lambda.camelcase}}_{{name}};
     {{/enumVars}}
   {{/allowableValues}}