diff --git a/kernel/thread.c b/kernel/thread.c
index e55523452c2..e1c312d5974 100644
--- a/kernel/thread.c
+++ b/kernel/thread.c
@@ -654,13 +654,6 @@ k_tid_t z_impl_k_thread_create(struct k_thread *new_thread,
 {
 	__ASSERT(!arch_is_in_isr(), "Threads may not be created in ISRs");
 
-	/* Special case, only for unit tests */
-#if defined(CONFIG_TEST) && defined(CONFIG_ARCH_HAS_USERSPACE) && !defined(CONFIG_USERSPACE)
-	__ASSERT((options & K_USER) == 0,
-		 "Platform is capable of user mode, and test thread created with K_USER option,"
-		 " but neither CONFIG_TEST_USERSPACE nor CONFIG_USERSPACE is set\n");
-#endif
-
 	z_setup_new_thread(new_thread, stack, stack_size, entry, p1, p2, p3,
 			  prio, options, NULL);