diff --git a/websockify b/websockify
index 34acecd..2e63fae 100755
--- a/websockify
+++ b/websockify
@@ -276,7 +276,7 @@ if __name__ == '__main__':
 
     # Parse host:port and convert ports to numbers
     if args[0].count(':') > 0:
-        opts.listen_host, opts.listen_port = args[0].split(':')
+        opts.listen_host, opts.listen_port = ":".join(args[0].split(':')[:len(args[0].split(':')) - 1]), args[0].split(':')[len(args[0].split(':')) - 1]
     else:
         opts.listen_host, opts.listen_port = '', args[0]
     try:    opts.listen_port = int(opts.listen_port)
@@ -287,7 +287,7 @@ if __name__ == '__main__':
         opts.target_port = None
     else:
         if args[1].count(':') > 0:
-            opts.target_host, opts.target_port = args[1].split(':')
+            opts.target_host, opts.target_port = ":".join(args[1].split(':')[:len(args[1].split(':')) - 1]), args[1].split(':')[len(args[1].split(':')) - 1]
         else:
             parser.error("Error parsing target")
         try:    opts.target_port = int(opts.target_port)