diff --git a/docs/yap.tex b/docs/yap.tex
index e4abb169d..3b193fc45 100644
--- a/docs/yap.tex
+++ b/docs/yap.tex
@@ -3780,7 +3780,7 @@ Hyperbolic arc cosine.
 @item atanh(@var{X})
 Hyperbolic arc tangent.
 
-@item lgamma(@var{X}) [ISO]
+@item lgamma(@var{X})
 gamma function.
 
 @item random(@var{X}) [ISO]
@@ -3864,7 +3864,7 @@ Integer bitwise conjunction.
 @item @var{X} \/ @var{Y} [ISO]
 Integer bitwise disjunction.
 
-@item @var{X} # @var{Y} [ISO]
+@item @var{X} # @var{Y}
 Integer bitwise exclusive disjunction.
 
 @item @var{X} << @var{Y}