diff --git a/IPython/core/interactiveshell.py b/IPython/core/interactiveshell.py
index 4f859bf..46272d9 100644
--- a/IPython/core/interactiveshell.py
+++ b/IPython/core/interactiveshell.py
@@ -255,7 +255,7 @@ class InteractiveShell(Configurable, Magic):
         self.init_logger()
         self.init_alias()
         self.init_builtins()
-        
+
         # pre_config_initialization
         self.init_shadow_hist()
 
diff --git a/IPython/zmq/ipkernel.py b/IPython/zmq/ipkernel.py
index a9b09cf..e206923 100755
--- a/IPython/zmq/ipkernel.py
+++ b/IPython/zmq/ipkernel.py
@@ -267,8 +267,8 @@ def main():
     print >>sys.__stdout__, "REQ Channel on port", req_port
 
     # Redirect input streams and set a display hook.
-    # sys.stdout = OutStream(session, pub_socket, u'stdout')
-    # sys.stderr = OutStream(session, pub_socket, u'stderr')
+    sys.stdout = OutStream(session, pub_socket, u'stdout')
+    sys.stderr = OutStream(session, pub_socket, u'stderr')
     sys.displayhook = DisplayHook(session, pub_socket)
 
     # Create the kernel.