diff --git a/tests/kernel/mem_protect/mem_protect/prj.conf b/tests/kernel/mem_protect/mem_protect/prj.conf
index c916dd0ad59..d38366ec4ac 100644
--- a/tests/kernel/mem_protect/mem_protect/prj.conf
+++ b/tests/kernel/mem_protect/mem_protect/prj.conf
@@ -3,3 +3,4 @@ CONFIG_ZTEST=y
 CONFIG_ZTEST_STACKSIZE=2048
 CONFIG_MAX_THREAD_BYTES=4
 CONFIG_USERSPACE=y
+CONFIG_MP_NUM_CPUS=1