diff --git a/src/vnet/interface/caps.c b/src/vnet/interface/caps.c
index 8b5fda1..54e8d90 100644
--- a/src/vnet/interface/caps.c
+++ b/src/vnet/interface/caps.c
@@ -54,7 +54,7 @@
       else
 	s = format (s, "unknown-%u", bit);
 
-      caps = reset_lowest_set_bit (caps);
+      caps = clear_lowest_set_bit (caps);
       if (caps)
 	vec_add1 (s, ' ');
     }