diff --git a/lisp/_prepare.el b/lisp/_prepare.el
index 896a5cf1..e9ab76c9 100644
--- a/lisp/_prepare.el
+++ b/lisp/_prepare.el
@@ -775,7 +775,7 @@ full detials."
   (ignore-errors (string-to-number str)))
 
 (defun eask--flag (flag)
-  "Return non-nil if FLAG exists.."
+  "Return non-nil if FLAG exists."
   (member (concat "--eask" flag) eask-argv))
 
 (defun eask--flag-value (flag)