diff --git a/tools/testing/selftests/cpu-hotplug/Makefile b/tools/testing/selftests/cpu-hotplug/Makefile
index 12657a5e4bf92dd23ced62e3660ab1acaecd4815..ae5faf9aade21b9d7690a6f423ea40907e6b2257 100644
--- a/tools/testing/selftests/cpu-hotplug/Makefile
+++ b/tools/testing/selftests/cpu-hotplug/Makefile
@@ -1,6 +1,6 @@
 all:
 
 run_tests:
-	@./on-off-test.sh || echo "cpu-hotplug selftests: [FAIL]"
+	@/bin/sh ./on-off-test.sh || echo "cpu-hotplug selftests: [FAIL]"
 
 clean:
diff --git a/tools/testing/selftests/memory-hotplug/Makefile b/tools/testing/selftests/memory-hotplug/Makefile
index 0f49c3f5f58d0460e09aea4aff40d5c6965e927a..350bfeda3aa8ccd9f7e487b85d212110c848d19a 100644
--- a/tools/testing/selftests/memory-hotplug/Makefile
+++ b/tools/testing/selftests/memory-hotplug/Makefile
@@ -1,6 +1,6 @@
 all:
 
 run_tests:
-	@./on-off-test.sh || echo "memory-hotplug selftests: [FAIL]"
+	@/bin/sh ./on-off-test.sh || echo "memory-hotplug selftests: [FAIL]"
 
 clean: