diff --git a/asdf.texinfo b/asdf.texinfo
index 855434f0b0a5e04e1b21c2902c1bd50fa6a0cf3e..e1f598875b17b0ed290ab1eed3244420fd7068d2 100644
--- a/asdf.texinfo
+++ b/asdf.texinfo
@@ -255,7 +255,8 @@ evaluating the following form in your Lisp implementation:
 (asdf:load-system '@var{foo})
 @end example
 
-(In older versions of ASDF, you may need to use @code{asdf:oos}, instead.)
+(In older versions of ASDF, you may need to use @code{(asdf:oos
+'asdf:load-op 'foo)}, instead.)
 
 Output from asdf and asdf extensions are supposed to be sent to the CL
 stream @code{*standard-output*}, and so rebinding that stream around