diff --git a/ac/guide_translations.m4 b/ac/guide_translations.m4
index 43a10e471..2b84d8e94 100644
--- a/ac/guide_translations.m4
+++ b/ac/guide_translations.m4
@@ -1,5 +1,8 @@
 AC_MSG_CHECKING(the mmg guide translation languages to install)
-GUIDE_TRANSLATIONS="`find $srcdir/doc/guide -maxdepth 1 -type d -printf '%f\n' | sed -e 1d | tr '\n' ' '`"
+GUIDE_TRANSLATIONS=""
+for entry in $srcdir/doc/guide/* ; do
+  test -d "$entry" && GUIDE_TRANSLATIONS="$GUIDE_TRANSLATIONS ${entry##*/}"
+done
 AC_MSG_RESULT($GUIDE_TRANSLATIONS)
 
 AC_SUBST(GUIDE_TRANSLATIONS)