diff --git a/lib/doc/Additional.lyx b/lib/doc/Additional.lyx
index 64a70724f8..a23f0b5d29 100644
--- a/lib/doc/Additional.lyx
+++ b/lib/doc/Additional.lyx
@@ -6988,7 +6988,7 @@ sample.tex
 \begin_layout Enumerate
 Make certain that 
 \family typewriter
-aastex631.layout
+aastex63.layout
 \family default
  appears in \SpecialChar LyX
 's 
@@ -7019,7 +7019,7 @@ American Astronomical Society (AASTeX V.
 \begin_inset space \thinspace{}
 \end_inset
 
-631)
+6.3.1)
 \family default
  appear in the class list in 
 \family sans