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diff --git a/src/urllib3/connection.py b/src/urllib3/connection.py
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index 02b3665..1ab1890 100644
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--- a/src/urllib3/connection.py
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+++ b/src/urllib3/connection.py
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@@ -1,4 +1,5 @@
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 from __future__ import absolute_import
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+import re
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 import datetime
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 import logging
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 import os
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@@ -61,6 +62,8 @@ port_by_scheme = {
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 # after 2016-01-01 (today - 2 years) AND before 2017-07-01 (today - 6 months)
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 RECENT_DATE = datetime.date(2017, 6, 30)
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+_CONTAINS_CONTROL_CHAR_RE = re.compile(r"[^-!#$%&'*+.^_`|~0-9a-zA-Z]")
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+
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 class DummyConnection(object):
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     """Used to detect a failed ConnectionCls import."""
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@@ -181,6 +184,17 @@ class HTTPConnection(_HTTPConnection, object):
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         conn = self._new_conn()
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         self._prepare_conn(conn)
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+    def putrequest(self, method, url, *args, **kwargs):
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+        """Send a request to the server"""
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+        match = _CONTAINS_CONTROL_CHAR_RE.search(method)
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+        if match:
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+            raise ValueError(
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+                "Method cannot contain non-token characters %r (found at least %r)"
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+                % (method, match.group())
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+            )
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+
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+        return _HTTPConnection.putrequest(self, method, url, *args, **kwargs)
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+
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     def request_chunked(self, method, url, body=None, headers=None):
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         """
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         Alternative to the common request method, which sends the