diff --git a/ChangeLog b/ChangeLog
index 723baca9547..26d51066fff 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2013-08-23  Glenn Morris  <rgm@gnu.org>
+
+	* configure.ac (emacs_broken_SIGIO): No longer set on gnu-kfreebsd.
+
 2013-07-25  Glenn Morris  <rgm@gnu.org>
 
 	* make-dist: Add a --tests option, to include test/.
diff --git a/configure.ac b/configure.ac
index 3f51039a56e..0ab66a70c7a 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 | gnu-kfreebsd )
+  hpux* | irix6-5 | openbsd | sol2* | unixware )
     emacs_broken_SIGIO=yes
     ;;