diff --git a/requests/adapters.py b/requests/adapters.py
index 98b7317e..b4502796 100644
--- a/requests/adapters.py
+++ b/requests/adapters.py
@@ -118,7 +118,7 @@ class HTTPAdapter(BaseAdapter):
         :param verify: Whether we should actually verify the certificate.
         :param cert: The SSL certificate to verify.
         """
-        if url.startswith('https') and verify:
+        if url.lower.startswith('https') and verify:
 
             cert_loc = None
 
diff --git a/requests/sessions.py b/requests/sessions.py
index f4aeeee6..ccd76340 100644
--- a/requests/sessions.py
+++ b/requests/sessions.py
@@ -467,7 +467,7 @@ class Session(SessionRedirectMixin):
         """Returns the appropriate connnection adapter for the given URL."""
         for (prefix, adapter) in self.adapters.items():
 
-            if url.startswith(prefix):
+            if url.lower.startswith(prefix):
                 return adapter
 
         # Nothing matches :-/