diff --git a/test/app/fuzz/iscsi_fuzz/iscsi_fuzz.c b/test/app/fuzz/iscsi_fuzz/iscsi_fuzz.c
index f222acb48..72c63b402 100644
--- a/test/app/fuzz/iscsi_fuzz/iscsi_fuzz.c
+++ b/test/app/fuzz/iscsi_fuzz/iscsi_fuzz.c
@@ -60,10 +60,7 @@ int			g_num_active_threads;
 bool			g_run = true;
 bool			g_is_valid_opcode = true;
 
-struct spdk_log_flag SPDK_LOG_ISCSI = {
-	.name = "iscsi",
-	.enabled = false,
-};
+SPDK_LOG_REGISTER_COMPONENT("iscsi", SPDK_LOG_ISCSI)
 
 /* Global resources */
 TAILQ_HEAD(, spdk_iscsi_pdu)		g_get_pdu_list;
diff --git a/test/unit/lib/nvme/nvme_ctrlr.c/nvme_ctrlr_ut.c b/test/unit/lib/nvme/nvme_ctrlr.c/nvme_ctrlr_ut.c
index b9e840fb3..65cf7deff 100644
--- a/test/unit/lib/nvme/nvme_ctrlr.c/nvme_ctrlr_ut.c
+++ b/test/unit/lib/nvme/nvme_ctrlr.c/nvme_ctrlr_ut.c
@@ -39,14 +39,11 @@
 
 #include "common/lib/test_env.c"
 
-struct spdk_log_flag SPDK_LOG_NVME = {
-	.name = "nvme",
-	.enabled = false,
-};
-
 #include "nvme/nvme_ctrlr.c"
 #include "nvme/nvme_quirks.c"
 
+SPDK_LOG_REGISTER_COMPONENT("nvme", SPDK_LOG_NVME)
+
 pid_t g_spdk_nvme_pid;
 
 struct nvme_driver _g_nvme_driver = {
diff --git a/test/unit/lib/nvme/nvme_pcie.c/nvme_pcie_ut.c b/test/unit/lib/nvme/nvme_pcie.c/nvme_pcie_ut.c
index 0088f9adb..3fb2541be 100644
--- a/test/unit/lib/nvme/nvme_pcie.c/nvme_pcie_ut.c
+++ b/test/unit/lib/nvme/nvme_pcie.c/nvme_pcie_ut.c
@@ -74,10 +74,7 @@ DEFINE_STUB(spdk_pci_device_get_id, struct spdk_pci_id, (struct spdk_pci_device
 
 DEFINE_STUB(nvme_uevent_connect, int, (void), 0);
 
-struct spdk_log_flag SPDK_LOG_NVME = {
-	.name = "nvme",
-	.enabled = false,
-};
+SPDK_LOG_REGISTER_COMPONENT("nvme", SPDK_LOG_NVME)
 
 struct nvme_driver *g_spdk_nvme_driver = NULL;