1 files changed, 1 insertions, 1 deletions
diff --git a/lib/irb/init.rb b/lib/irb/init.rb
index 8a9215f5f9..d7ee885665 100644
--- a/lib/irb/init.rb
+++ b/lib/irb/init.rb
@@ -83,7 +83,7 @@ module IRB # :nodoc:
       :SIMPLE => {
         :PROMPT_I => ">> ",
         :PROMPT_N => ">> ",
-        :PROMPT_S => nil,
+        :PROMPT_S => "%l> ",
         :PROMPT_C => "?> ",
         :RETURN => "=> %s\n"
       },