diff --git a/doc/lispref/control.texi b/doc/lispref/control.texi
index 401a999cf2..e279be8557 100644
--- a/doc/lispref/control.texi
+++ b/doc/lispref/control.texi
@@ -730,7 +730,8 @@ result as its condition data.
 
 Any kind of Lisp code is valid inside @var{body}, but
 @code{iter-yield} and @code{iter-yield-from} cannot appear inside
address@hidden forms.
address@hidden forms or any dynamic @code{let} bindings,
+i.e. bindings for variables defined with @code{defvar}.
 
 @end defmac