diff --git a/ChangeLog b/ChangeLog
index 9f621d2e..647674ae 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2009-08-17  Akim Demaille  <demaille@gostai.com>
+
+	build: require gettext 0.17.
+
+	Suggested by Bruno Haible.
+	http://lists.gnu.org/archive/html/bug-bison/2009-08/msg00009.html
+	* configure.ac: require gettext 0.17 to ensure compatibility with
+	gnulib.
+
 2010-07-24  Joel E. Denny  <joeldenny@joeldenny.org>
 
 	tests: handle Valgrind that complains about >&-.
diff --git a/configure.ac b/configure.ac
index 931a580b..6539dc79 100644
--- a/configure.ac
+++ b/configure.ac
@@ -130,9 +130,10 @@ BISON_PREREQ_SUBPIPE
 BISON_PREREQ_TIMEVAR
 
 # Gettext.
-# We've never tested with gettext versions before 0.15, so play it safe.
+# We use gnulib, which is only guaranteed to work properly with the
+# latest Gettext.
 AM_GNU_GETTEXT([external], [need-ngettext])
-AM_GNU_GETTEXT_VERSION([0.15])
+AM_GNU_GETTEXT_VERSION([0.17])
 BISON_I18N
 
 # Internationalized parsers.