diff --git a/src/commands.hxx b/src/commands.hxx
index 6529964..162efa4 100644
--- a/src/commands.hxx
+++ b/src/commands.hxx
@@ -1400,7 +1400,7 @@ class Timeout: public Command {
 class Certificate: public Command {
   public:
     QString tag() const {
-      return "";
+      return "certificate";
     }
     QString description() const {
       return