diff --git a/inferior-shell-test.asd b/inferior-shell-test.asd
index b2655b31a85455883ce77bc8ad7a68c7ca174265..d19857fb94b755410a56bad4ce9a6922d8ffd90e 100644
--- a/inferior-shell-test.asd
+++ b/inferior-shell-test.asd
@@ -1,4 +1,5 @@
 ;;; -*- Lisp -*-
 
 (defsystem :inferior-shell-test
-  :depends-on (:inferior-shell :inferior-shell/test))
+  ;; adding inferior-shell *second* makes things work on asdf 1&2(!):
+  :depends-on (:inferior-shell/test :inferior-shell))
diff --git a/inferior-shell.asd b/inferior-shell.asd
index 88cb90e2942404d4a9dbb2883b08e42e444dc6b4..6aeb4996b8a6f5e76ac2b7ceb0a0fd81a9a2ea22 100644
--- a/inferior-shell.asd
+++ b/inferior-shell.asd
@@ -20,7 +20,8 @@
           :if-feature (:and :sbcl :sb-thread :unix)))
   :in-order-to ((test-op (load-op inferior-shell/test)))
   :perform (test-op :after (o s)
-              (symbol-call :inferior-shell-test :test-suite)))
+              ;; ASDF2: can't use uiop:symbol-call
+              (funcall (find-symbol (string :test-suite) :inferior-shell-test))))
 
 (defsystem :inferior-shell/test
   :depends-on (:inferior-shell :hu.dwim.stefil)