diff --git a/lib/tls b/lib/tls
index d96ca4f197..e044066c6a 100644
--- a/lib/tls
+++ b/lib/tls
@@ -519,6 +519,10 @@ $listen_string
     SSLEngine On
     SSLCertificateFile $DEVSTACK_CERT
 
+    # Disable KeepAlive to fix bug #1630664 a.k.a the
+    # ('Connection aborted.', BadStatusLine("''",)) error
+    KeepAlive Off
+
     <Location />
         ProxyPass http://$b_host:$b_port/ retry=5 disablereuse=on keepalive=off nocanon
         ProxyPassReverse http://$b_host:$b_port/