diff --git a/tests/bluetooth/host/id/bt_id_set_adv_own_addr/prj.conf b/tests/bluetooth/host/id/bt_id_set_adv_own_addr/prj.conf
index 2682cec05b5..95e91d3abd6 100644
--- a/tests/bluetooth/host/id/bt_id_set_adv_own_addr/prj.conf
+++ b/tests/bluetooth/host/id/bt_id_set_adv_own_addr/prj.conf
@@ -7,3 +7,7 @@ CONFIG_ASSERT=y
 CONFIG_ASSERT_LEVEL=2
 CONFIG_ASSERT_VERBOSE=y
 CONFIG_ASSERT_ON_ERRORS=y
+
+# Enabling optimizations will make the test fail.
+# Reason is (at the time of writing) unknown.
+CONFIG_NO_OPTIMIZATIONS=y