diff --git a/src/vlib/cli.c b/src/vlib/cli.c
index f684289..ca8d2ab 100644
--- a/src/vlib/cli.c
+++ b/src/vlib/cli.c
@@ -811,7 +811,7 @@
 
   while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
     {
-      if (!unformat (line_input, "%U", unformat_vlib_enable_disable, &enable))
+      if (unformat (line_input, "%U", unformat_vlib_enable_disable, &enable))
 	;
       else if (unformat (line_input, "api-segment"))
 	api_segment = 1;