diff --git a/18-asyncio/charfinder/http_charfinder.py b/18-asyncio/charfinder/http_charfinder.py
index d7e8ca5..e254668 100755
--- a/18-asyncio/charfinder/http_charfinder.py
+++ b/18-asyncio/charfinder/http_charfinder.py
@@ -7,7 +7,7 @@
 from charfinder import UnicodeNameIndex
 
 TEMPLATE_NAME = 'http_charfinder.html'
-CONTENT_TYPE = 'text/html; charset=UTF-8'
+CONTENT_TYPE = 'text/html'
 SAMPLE_WORDS = ('bismillah chess cat circled Malayalam digit'
                 ' Roman face Ethiopic black mark symbol dot'
                 ' operator Braille hexagram').split()
diff --git a/18b-async-await/charfinder/http_charfinder.py b/18b-async-await/charfinder/http_charfinder.py
index ace15c5..bc639b9 100755
--- a/18b-async-await/charfinder/http_charfinder.py
+++ b/18b-async-await/charfinder/http_charfinder.py
@@ -7,7 +7,7 @@
 from charfinder import UnicodeNameIndex
 
 TEMPLATE_NAME = 'http_charfinder.html'
-CONTENT_TYPE = 'text/html; charset=UTF-8'
+CONTENT_TYPE = 'text/html'
 SAMPLE_WORDS = ('bismillah chess cat circled Malayalam digit'
                 ' Roman face Ethiopic black mark symbol dot'
                 ' operator Braille hexagram').split()