diff --git a/lisp/subr.el b/lisp/subr.el
index 0918b62387f..122a0d8da4c 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -1555,7 +1555,7 @@ FUNCTION is added at the end.
 
 The optional fourth argument, LOCAL, if non-nil, says to modify
 the hook's buffer-local value rather than its global value.
-This makes the hook buffer-local, and it makes it a member of the
+This makes the hook buffer-local, and it makes t a member of the
 buffer-local value.  That acts as a flag to run the hook
 functions of the global value as well as in the local value.