diff --git a/ext/purelib.rb b/ext/purelib.rb
index f826c5782e..10ee06176c 100644
--- a/ext/purelib.rb
+++ b/ext/purelib.rb
@@ -1,6 +1,3 @@
 if nul = $:.index("-")
   $:[nul..-1] = ["."]
 end
-if nul = $:.index("-")
-  $:[nul..-1] = ["."]
-end