diff --git a/configure.ac b/configure.ac
index 615653fca6..5878300dd0 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,6 +2,7 @@ dnl Process with autoconf to generate configure script   -*- sh -*-
 
 AC_INIT(LyX,2.2.1dev,[lyx-devel@lists.lyx.org],[lyx])
 AC_PRESERVE_HELP_ORDER
+
 # Use ISO format only. The frontend needs to parse this
 AC_SUBST(LYX_DATE, ["2016-05-23"])
 AC_PREREQ(2.60)