diff --git a/configure.ac b/configure.ac
index 52dea73..6b1a818 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,6 +5,8 @@ AC_INIT([caribou],
         [caribou])

 AC_CONFIG_MACRO_DIR([m4])
+AM_GNU_GETTEXT([external])
+AM_GNU_GETTEXT_VERSION([0.25])

 AM_PROG_LIBTOOL