diff --git a/include/spdk/idxd_spec.h b/include/spdk/idxd_spec.h
index a4038a14f8..ec478eb2a0 100644
--- a/include/spdk/idxd_spec.h
+++ b/include/spdk/idxd_spec.h
@@ -399,7 +399,7 @@ union idxd_gensts_register {
 };
 SPDK_STATIC_ASSERT(sizeof(union idxd_gensts_register) == 4, "size mismatch");
 
-union idxd_cmdsts_reg {
+union idxd_cmdsts_register {
 	struct {
 		uint32_t err : 8;
 		uint32_t result : 16;
@@ -408,7 +408,7 @@ union idxd_cmdsts_reg {
 	};
 	uint32_t raw;
 };
-SPDK_STATIC_ASSERT(sizeof(union idxd_cmdsts_reg) == 4, "size mismatch");
+SPDK_STATIC_ASSERT(sizeof(union idxd_cmdsts_register) == 4, "size mismatch");
 
 union idxd_swerr_register {
 	struct {
diff --git a/lib/idxd/idxd_user.c b/lib/idxd/idxd_user.c
index 0f477f7cd1..92c9451731 100644
--- a/lib/idxd/idxd_user.c
+++ b/lib/idxd/idxd_user.c
@@ -109,7 +109,7 @@ static int
 idxd_wait_cmd(struct spdk_idxd_device *idxd, int _timeout)
 {
 	uint32_t timeout = _timeout;
-	union idxd_cmdsts_reg cmd_status = {};
+	union idxd_cmdsts_register cmd_status = {};
 
 	cmd_status.raw = _idxd_read_4(idxd, IDXD_CMDSTS_OFFSET);
 	while (cmd_status.active && --timeout) {
diff --git a/test/unit/lib/idxd/idxd_user.c/idxd_user_ut.c b/test/unit/lib/idxd/idxd_user.c/idxd_user_ut.c
index d2b2bafec1..c77bc89b49 100644
--- a/test/unit/lib/idxd/idxd_user.c/idxd_user_ut.c
+++ b/test/unit/lib/idxd/idxd_user.c/idxd_user_ut.c
@@ -200,7 +200,7 @@ static int
 test_idxd_reset_dev(void)
 {
 	struct spdk_user_idxd_device user_idxd = {};
-	union idxd_cmdsts_reg *fake_cmd_status_reg;
+	union idxd_cmdsts_register *fake_cmd_status_reg;
 	int rc;
 
 	user_idxd.reg_base = calloc(1, FAKE_REG_SIZE);
@@ -226,7 +226,7 @@ test_idxd_wait_cmd(void)
 {
 	struct spdk_user_idxd_device user_idxd = {};
 	int timeout = 1;
-	union idxd_cmdsts_reg *fake_cmd_status_reg;
+	union idxd_cmdsts_register *fake_cmd_status_reg;
 	int rc;
 
 	user_idxd.reg_base = calloc(1, FAKE_REG_SIZE);