diff --git a/lib/rubygems/commands/which_command.rb b/lib/rubygems/commands/which_command.rb
index 3c30702672..fca463a1ef 100644
--- a/lib/rubygems/commands/which_command.rb
+++ b/lib/rubygems/commands/which_command.rb
@@ -57,8 +57,7 @@ requiring to see why it does not behave as you expect.
 
       if paths.empty?
         alert_error "Can't find Ruby library file or shared library #{arg}"
-
-        found &&= false
+        found = false
       else
         say paths
       end