diff --git a/tests/bench_sys_atomic_utils/app.config.test b/tests/bench_sys_atomic_utils/app.config.test
new file mode 100644
index 0000000000..12e5a9d55d
--- /dev/null
+++ b/tests/bench_sys_atomic_utils/app.config.test
@@ -0,0 +1,5 @@
+# this file enables modules defined in Kconfig. Do not use this file for
+# application configuration. This is only needed during migration.
+CONFIG_MODULE_ATOMIC_UTILS=y
+CONFIG_MODULE_TEST_UTILS_INTERACTIVE_SYNC=y
+CONFIG_MODULE_XTIMER=y
diff --git a/tests/sys_atomic_utils/app.config.test b/tests/sys_atomic_utils/app.config.test
new file mode 100644
index 0000000000..5b7fe9d088
--- /dev/null
+++ b/tests/sys_atomic_utils/app.config.test
@@ -0,0 +1,8 @@
+# this file enables modules defined in Kconfig. Do not use this file for
+# application configuration. This is only needed during migration.
+CONFIG_MODULE_ATOMIC_UTILS=y
+CONFIG_MODULE_FMT=y
+CONFIG_MODULE_SHELL=y
+CONFIG_MODULE_RANDOM=y
+CONFIG_MODULE_PRNG_TINYMT32=y
+CONFIG_MODULE_XTIMER=y
diff --git a/tests/sys_atomic_utils_unittests/app.config.test b/tests/sys_atomic_utils_unittests/app.config.test
new file mode 100644
index 0000000000..ea9a9f2616
--- /dev/null
+++ b/tests/sys_atomic_utils_unittests/app.config.test
@@ -0,0 +1,7 @@
+# this file enables modules defined in Kconfig. Do not use this file for
+# application configuration. This is only needed during migration.
+CONFIG_MODULE_EMBUNIT=y
+CONFIG_MODULE_ATOMIC_UTILS=y
+CONFIG_MODULE_RANDOM=y
+# Force tinymt32 to be selected
+CONFIG_MODULE_PRNG_TINYMT32=y