diff --git a/doc/org-manual.org b/doc/org-manual.org
index db9d26e68..24bdc9fdb 100644
--- a/doc/org-manual.org
+++ b/doc/org-manual.org
@@ -11353,13 +11353,15 @@ see [[*Structure Templates]] for shortcuts to easily insert code blocks.
 #+end_example
 
 Both in =example= and in =src= snippets, you can add a =-n= switch to
-the end of the =#+BEGIN= line, to get the lines of the example
-numbered.  The =-n= takes an optional numeric argument specifying the
-starting line number of the block.  If you use a =+n= switch, the
-numbering from the previous numbered snippet is continued in the
-current one.  The =+n= switch can also take a numeric argument.  This
-adds the value of the argument to the last line of the previous block
-to determine the starting line number.
+the =#+BEGIN= line[fn::In the =src= snippets, switches must be placed
+right after the language name and before the [[*Structure of Code
+Blocks][header arguments]]], to get the lines of the example numbered.
+The =-n= takes an optional numeric argument specifying the starting
+line number of the block.  If you use a =+n= switch, the numbering
+from the previous numbered snippet is continued in the current one.
+The =+n= switch can also take a numeric argument.  This adds the value
+of the argument to the last line of the previous block to determine
+the starting line number.
 
 #+begin_example
 ,#+BEGIN_SRC emacs-lisp -n 20