diff --git a/lib/irb/extend-command.rb b/lib/irb/extend-command.rb
index 6446c48ef..9cbeb33a1 100644
--- a/lib/irb/extend-command.rb
+++ b/lib/irb/extend-command.rb
@@ -306,7 +306,7 @@ def install_alias_method(to, from, override = NO_OVERRIDE)
           end
           alias_method to, from
         }
-      else
+      elsif !defined?(HushAliasWarning)
         Kernel.print "irb: warn: can't alias #{to} from #{from}.\n"
       end
     end