diff --git a/files.html b/files.html
index ec5e3ed..d7deacf 100644
--- a/files.html
+++ b/files.html
@@ -341,12 +341,12 @@ AttributeError: '_io.BufferedReader' object has no attribute 'encoding'>>> an_image.tell()
0
->>> data = image.read(3) ①
+>>> data = an_image.read(3) ①
>>> data
b'\xff\xd8\xff'
->>> type(data) ②
+>>> type(data) ②
<class 'bytes'>
->>> an_image.tell() ③
+>>> an_image.tell() ③
3
>>> an_image.seek(0)
0