diff --git a/httpie/utils.py b/httpie/utils.py
index d828d488..7c8a598c 100644
--- a/httpie/utils.py
+++ b/httpie/utils.py
@@ -80,12 +80,7 @@ def get_content_type(filename):
     to ``mimetypes``.
 
     """
-    mime, encoding = mimetypes.guess_type(filename, strict=False)
-    if mime:
-        content_type = mime
-        if encoding:
-            content_type = f'{mime}; charset={encoding}'
-        return content_type
+    return mimetypes.guess_type(filename, strict=False)[0]
 
 
 def split_cookies(cookies):