diff --git a/shop3/shop-silent-test.asd b/shop3/shop-silent-test.asd
deleted file mode 100644
index dc6d4091..00000000
--- a/shop3/shop-silent-test.asd
+++ /dev/null
@@ -1,3 +0,0 @@
-(defsystem shop-silent-test
-    :depends-on ((:version "fiveam-asdf" "2"))
-    :components ((:file "silent-shop-test")))
diff --git a/shop3/shop3.asd b/shop3/shop3.asd
index f4289455..01426a7b 100644
--- a/shop3/shop3.asd
+++ b/shop3/shop3.asd
@@ -211,8 +211,8 @@ minimal affected subtree."
 
 
 (defsystem shop3/test
-    :defsystem-depends-on ("shop-silent-test")
-    :class "silent-shop-test:shop-fiveam-tester"
+    :defsystem-depends-on ((:version "fiveam-asdf" "2"))
+    :class "fiveam-asdf:fiveam-tester-system"
     :test-names ((pddl-tests . :shop3)  ; 144
                  (protection-test . :protection-test)  ; 16
                  ;; all the following are now subsumed into all-shop3-internal-tests
@@ -356,8 +356,8 @@ minimal affected subtree."
 
 
 (defsystem shop3/test-satellite
-    :defsystem-depends-on ("shop-silent-test")
-    :class "silent-shop-test:shop-fiveam-tester"
+    :defsystem-depends-on ((:version "fiveam-asdf" "2"))
+    :class "fiveam-asdf:fiveam-tester-system"
     :test-names (("SATELLITE-ADL-TESTS" . "TEST-SATELLITE"))
     :num-checks 80
     :depends-on ((:version "shop3" (:read-file-form "shop-version.lisp-expr"))
@@ -368,8 +368,8 @@ minimal affected subtree."
     :components ((:file "test-satellite")))
 
 (defsystem shop3/test-unifier
-    :defsystem-depends-on ("shop-silent-test")
-    :class "silent-shop-test:shop-fiveam-tester"
+    :defsystem-depends-on ((:version "fiveam-asdf" "2"))
+    :class "fiveam-asdf:fiveam-tester-system"
     :test-names (("TEST-SHOP-UNIFIER" . "SHOP-UNIFIER-TESTS"))
     :num-checks 36
     :depends-on ("shop3/unifier" "alexandria")
diff --git a/shop3/silent-shop-test.lisp b/shop3/silent-shop-test.lisp
deleted file mode 100644
index eeb852a2..00000000
--- a/shop3/silent-shop-test.lisp
+++ /dev/null
@@ -1,17 +0,0 @@
-(defpackage :silent-shop-test
-  (:use :asdf :common-lisp)
-  (:export #:shop-fiveam-tester))
-
-(in-package #:silent-shop-test)
-
-
-(defclass shop-tester-mixin ()
-     ()
-  (:documentation "Mixin that adds silent functioning of SHOP3."))
-
-(defclass shop-fiveam-tester (shop-tester-mixin fiveam-tester-system) ())
-
-(defmethod perform :around ((op test-op)
-                                 (component shop-tester-mixin))
-  (progv (list (uiop:intern* '#:*silent* '#:shop))
-    (call-next-method)))