2 files changed, 5 insertions, 1 deletions

diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index d032e3c9243..17d7c0bdd34 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,7 @@
+2013-12-07  Bozhidar Batsov  <bozhidar@batsov.com>
+
+        * emacs-lisp/helpers.el (string-blank-p): Use `string-match-p'.
+
 2013-12-07  Tassilo Horn  <tsdh@gnu.org>
 
         * help-fns.el (describe-function-1): Use new advice-* functions
diff --git a/lisp/emacs-lisp/helpers.el b/lisp/emacs-lisp/helpers.el
index 8049f4e1d1d..b7996ade777 100644
--- a/lisp/emacs-lisp/helpers.el
+++ b/lisp/emacs-lisp/helpers.el
@@ -67,7 +67,7 @@
 
 (defsubst string-blank-p (string)
   "Check whether STRING is either empty or only whitespace."
-  (string-empty-p (string-trim string)))
+  (string-match-p "\\`[ \t\n\r]*\\'" string))
 
 (provide 'helpers)