diff --git a/ChangeLog b/ChangeLog
index 45b6c9152b2..159a1ee4c8b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2013-07-02  Christoph Egger  <christoph@debian.org>  (tiny change)
+
+	* configure.ac (emacs_broken_SIGIO): Set on gnu-kfreebsd to avoid hang.
+	http://bugs.debian.org/712974
+
 2013-06-22  Glenn Morris  <rgm@fencepost.gnu.org>
 
 	* configure.ac: Include X11/X.h when testing for Xft.h.  (Bug#14684)
diff --git a/configure.ac b/configure.ac
index 0ab66a70c7a..3f51039a56e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3384,7 +3384,7 @@ emacs_broken_SIGIO=no
 case $opsys in
   dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
   dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
-  hpux* | irix6-5 | openbsd | sol2* | unixware )
+  hpux* | irix6-5 | openbsd | sol2* | unixware | gnu-kfreebsd )
     emacs_broken_SIGIO=yes
     ;;