diff --git a/src/_rvm b/src/_rvm
index b7690ee..e9604e1 100644
--- a/src/_rvm
+++ b/src/_rvm
@@ -15,10 +15,7 @@
 #
 # ------------------------------------------------------------------------------
 
-typeset curcontext state line cmds ret
-
-curcontext="$curcontext"
-ret=1
+local curcontext="$curcontext" state line cmds ret=1
 
 _arguments -C \
   '(- 1 *)'{-v,--version}'[display version information]' \