--- vagrant-1.8.1/bin/vagrant
+++ vagrant-1.8.1/bin/vagrant
@@ -5,6 +5,8 @@
 # initializing which have historically resulted in stack traces.
 Signal.trap("INT") { abort }
 
+ENV.delete('GEM_PATH')
+
 # Split arguments by "--" if its there, we'll recombine them later
 argv = ARGV.dup
 argv_extra = []