diff --git a/lists.lisp b/lists.lisp
index 1dfc836e63f0b09abdab0ee56b4bf5de8320d988..51286071ebf26274e7bbb6e3c298ee1f0f94cd17 100644
--- a/lists.lisp
+++ b/lists.lisp
@@ -277,7 +277,7 @@ not destructively modified. Keys are compared using EQ."
 
 (defun delete-from-plist (plist &rest keys)
   "Just like REMOVE-FROM-PLIST, but this version may destructively modify the
-provided plist."
+provided PLIST."
   (declare (optimize speed))
   (loop with head = plist
         with tail = nil   ; a nil tail means an empty result so far