diff --git a/tests/ssp/Makefile b/tests/ssp/Makefile
index 2dacca7f28..8c13adedf6 100644
--- a/tests/ssp/Makefile
+++ b/tests/ssp/Makefile
@@ -2,10 +2,9 @@ include ../Makefile.tests_common
 
 USEMODULE += ssp
 
-# This test intentionally crashes the firmware and when using a board with a
-# preflashed bootloader, it cannot be reflashed automatically afterwards.
-FEATURES_BLACKLIST += bootloader_arduino
-FEATURES_BLACKLIST += bootloader_nrfutil
+# This test intentionally crashes the firmware and when using a board with
+# stdio via CDC ACM, RIOT can't print anything after the crash.
+FEATURES_BLACKLIST += highlevel_stdio
 
 include $(RIOTBASE)/Makefile.include
 
diff --git a/tests/unittests/Makefile b/tests/unittests/Makefile
index cee2d25466..e8a82e3638 100644
--- a/tests/unittests/Makefile
+++ b/tests/unittests/Makefile
@@ -13,12 +13,9 @@ endif
 
 DISABLE_MODULE += auto_init auto_init_%
 
-# boards using a preflashed bootloader require auto_init to
-# automatically initialize stdio over USB. Without this, the bootloader
-# management feature cannot be used (auto reset and auto reboot in bootloader
-# mode)
-FEATURES_BLACKLIST += bootloader_arduino
-FEATURES_BLACKLIST += bootloader_nrfutil
+# boards using stdio via CDC ACM require auto_init to automatically
+# initialize stdio over USB.
+FEATURES_BLACKLIST += highlevel_stdio
 
 # Pull in `Makefile.include`s from the test suites:
 -include $(UNIT_TESTS:%=$(RIOTBASE)/tests/unittests/%/Makefile.include)