diff --git a/lib/configure.py b/lib/configure.py
index bda55ddbfe..ec033192bd 100644
--- a/lib/configure.py
+++ b/lib/configure.py
@@ -1772,7 +1772,7 @@ if __name__ == '__main__':
     lyx_check_config = True
     lyx_kpsewhich = True
     outfile = 'lyxrc.defaults'
-    lyxrc_fileformat = 22
+    lyxrc_fileformat = 23
     rc_entries = ''
     lyx_keep_temps = False
     version_suffix = ''