diff --git a/spec/wpscan_spec.rb b/spec/wpscan_spec.rb
index e2de8712..85d8f12f 100644
--- a/spec/wpscan_spec.rb
+++ b/spec/wpscan_spec.rb
@@ -5,14 +5,14 @@ require 'spec_helper'
 describe 'wpscan main checks' do
 
   it 'should check for errors on running the mainscript' do
-    a = %x[ruby #{ROOT_DIR}/wpscan.rb]
+    a = %x[#{RbConfig.ruby} #{ROOT_DIR}/wpscan.rb]
     expect(a).to match /No argument supplied/
   end
 
   it 'should check for valid syntax' do
     result = ""
     Dir.glob("**/*.rb") do |file|
-      res = %x{ruby -c #{ROOT_DIR}/#{file} 2>&1}.split("\n")
+      res = %x{#{RbConfig.ruby} -c #{ROOT_DIR}/#{file} 2>&1}.split("\n")
       ok = res.select {|msg| msg =~ /Syntax OK/}
       result << ("####################\nSyntax error in #{file}:\n#{res.join("\n").strip()}\n") if ok.size != 1
     end