diff --git a/tools/Gemfile.plugins b/tools/Gemfile.plugins
index 46bc8db50..a392913df 100644
--- a/tools/Gemfile.plugins
+++ b/tools/Gemfile.plugins
@@ -2,6 +2,6 @@ require 'rakelib/default_plugins'
 
 source 'https://rubygems.org'
 
-gemspec :name => "logstash", :path => ".."
+gemspec :name => "logstash", :path => File.expand_path(File.join(File.dirname(__FILE__), ".."))
 
 DEFAULT_PLUGINS.each {|p| gem p}