diff --git a/4-binary/02-text-decoder/article.md b/4-binary/02-text-decoder/article.md
index 9287279e..d9f5e8fa 100644
--- a/4-binary/02-text-decoder/article.md
+++ b/4-binary/02-text-decoder/article.md
@@ -2,7 +2,7 @@
 
 What if the binary data is actually a string? For instance, we received a file with textual data.
 
-The build-in [TextDecoder](https://encoding.spec.whatwg.org/#interface-textdecoder) object allows to read the value into an an actual JavaScript string, given the buffer and the encoding.
+The build-in [TextDecoder](https://encoding.spec.whatwg.org/#interface-textdecoder) object allows to read the value into an actual JavaScript string, given the buffer and the encoding.
 
 We first need to create it:
 ```js