diff --git a/src/doc/reference b/src/doc/reference
index f0f6155220c..0668397076d 160000
--- a/src/doc/reference
+++ b/src/doc/reference
@@ -1 +1 @@
-Subproject commit f0f6155220ca307881f185e44d0c325c5af75ad2
+Subproject commit 0668397076da350c404dadcf07b6cbc433ad3743