diff --git a/tools/setup.lisp b/tools/setup.lisp
index ba083b9f1027dc09a3bddb15efe9c04aa1b94625..2639ff9d38e0b058f7c3c2a94e25c5f9f193315a 100644
--- a/tools/setup.lisp
+++ b/tools/setup.lisp
@@ -211,6 +211,7 @@
 	  ((c:target-featurep :hppa) "hppa/")
 	  ((c:target-featurep :sparc) "sparc/")
 	  ((c:target-featurep :x86) "x86/")
+	  ((c:target-featurep :alpha) "alpha/")
 	  (t
 	   (error "What machine is this?")))
     (make-pathname :directory (pathname-directory f)))))