diff -urN quagga-0.99.11.orig/vtysh/vtysh.c quagga-0.99.11/vtysh/vtysh.c
--- quagga-0.99.11.orig/vtysh/vtysh.c	2008-09-05 16:27:26.000000000 +0200
+++ quagga-0.99.11/vtysh/vtysh.c	2009-05-08 17:41:22.000000000 +0200
@@ -679,6 +679,7 @@
 	rl_pending_input = ' ';
     }
 
+  rl_completion_suppress_append = 1;
   return matches;
 }