1 files changed, 5 insertions, 6 deletions
diff --git a/sample/observ.rb b/sample/observ.rb
index 72e5178b38..ef4a9f60f5 100644
--- a/sample/observ.rb
+++ b/sample/observ.rb
@@ -1,6 +1,5 @@
 #! /usr/local/bin/ruby
 
-require "thread"
 require "observer"
 
 class Tick
@@ -8,10 +7,10 @@ class Tick
   def initialize
     Thread.start do
       loop do
-	sleep 0.999
-	now = Time.now
-	changed
-	notify_observers(now.hour, now.min, now.sec)
+        sleep 0.999
+        now = Time.now
+        changed
+        notify_observers(now.hour, now.min, now.sec)
       end
     end
   end
@@ -28,5 +27,5 @@ class Clock
   end
 end
 
-clock = Clock.new(Tick.new)
+Clock.new(Tick.new)
 sleep