| Index: Source/modules/encoding/TextDecoder.idl
 | 
| diff --git a/Source/modules/encoding/TextDecoder.idl b/Source/modules/encoding/TextDecoder.idl
 | 
| index 91be920b13f71665e196420fcdd10e0ac2644505..f71c7b896474def93df016c4ab0b4fce48dae88c 100644
 | 
| --- a/Source/modules/encoding/TextDecoder.idl
 | 
| +++ b/Source/modules/encoding/TextDecoder.idl
 | 
| @@ -31,7 +31,7 @@
 | 
|  [
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|      RuntimeEnabled=EncodingAPI,
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|      Exposed=Window&Worker,
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| -    Constructor([Default=NullString] optional DOMString label, optional Dictionary options),
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| +    Constructor(optional DOMString label = null, optional Dictionary options),
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|      RaisesException=Constructor,
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|      GarbageCollected,
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|      MeasureAs=TextDecoderConstructor
 | 
| 
 |