diff --git a/z.lua b/z.lua
index 491dfd1..311ef0d 100755
--- a/z.lua
+++ b/z.lua
@@ -67,7 +67,7 @@
 --   set $_ZL_CMD in .bashrc/.zshrc to change the command (default z).
 --   set $_ZL_DATA in .bashrc/.zshrc to change the datafile (default ~/.zlua).
 --   set $_ZL_NO_PROMPT_COMMAND if you're handling PROMPT_COMMAND yourself.
---   set $_ZL_EXCLUDE_DIRS to an array of directories to exclude.
+--   set $_ZL_EXCLUDE to an array of directories to exclude.
 --   set $_ZL_ADD_ONCE to 1 to update database only if $PWD changed.
 --   set $_ZL_CD to specify your own cd command
 --   set $_ZL_ECHO to 1 to display new directory name after cd.