diff --git a/lib/puppet/functions/nodejs/util/nodejs_functions.rb b/lib/puppet/functions/nodejs/util/nodejs_functions.rb
index ab3c8dc..2654071 100644
--- a/lib/puppet/functions/nodejs/util/nodejs_functions.rb
+++ b/lib/puppet/functions/nodejs/util/nodejs_functions.rb
@@ -42,7 +42,7 @@ def get_version_list
 
   http_proxy = ENV['http_proxy']
   if http_proxy.to_s != ''
-    if http_proxy =~ %r{/^http[s]{0,1}:\/\/.*/}
+    if http_proxy =~ /^http[s]{0,1}:\/\/.*/
       proxy = URI.parse(http_proxy)
     else
       proxy = URI.parse('http://' + http_proxy)