diff --git a/libmproxy/contrib/tls/_constructs.py b/libmproxy/contrib/tls/_constructs.py
index 9c57a7992c..4cb7d3823a 100644
--- a/libmproxy/contrib/tls/_constructs.py
+++ b/libmproxy/contrib/tls/_constructs.py
@@ -5,7 +5,7 @@
 from __future__ import absolute_import, division, print_function
 
 from construct import (Array, Bytes, Struct, UBInt16, UBInt32, UBInt8, PascalString, Embed, TunnelAdapter, GreedyRange,
-                       Switch, OptionalGreedyRange)
+                       Switch, OptionalGreedyRange, Optional)
 
 from .utils import UBInt24
 
@@ -112,7 +112,7 @@
 )
 
 extensions = TunnelAdapter(
-    PascalString("extensions", length_field=UBInt16("extensions_length")),
+    Optional(PascalString("extensions", length_field=UBInt16("extensions_length"))),
     OptionalGreedyRange(Extension)
 )
 
diff --git a/libmproxy/protocol/tls.py b/libmproxy/protocol/tls.py
index 871926eea9..ed74764321 100644
--- a/libmproxy/protocol/tls.py
+++ b/libmproxy/protocol/tls.py
@@ -318,7 +318,7 @@ def _parse_client_hello(self):
             client_hello = ClientHello.parse(raw_client_hello)
         except ConstructError as e:
             self.log("Cannot parse Client Hello: %s" % repr(e), "error")
-            self.log("Raw Client Hello:\r\n:%s" % raw_client_hello.encode("hex"), "debug")
+            self.log("Raw Client Hello: %s" % raw_client_hello.encode("hex"), "debug")
             return
 
         self.client_ciphers = client_hello.cipher_suites.cipher_suites