diff --git a/lib/nvme/nvme_ctrlr.c b/lib/nvme/nvme_ctrlr.c
index a7d4422f3..610adbc34 100644
--- a/lib/nvme/nvme_ctrlr.c
+++ b/lib/nvme/nvme_ctrlr.c
@@ -963,9 +963,7 @@ nvme_ctrlr_map_cmb(struct spdk_nvme_ctrlr *ctrlr)
 	ctrlr->cmb_size = size;
 	ctrlr->cmb_current_offset = offset;
 
-	if (cmbsz.bits.sqs) {
-		ctrlr->flags |= SPDK_NVME_CTRLR_CMB_SQ_SUPPORTED;
-	} else {
+	if (!cmbsz.bits.sqs) {
 		ctrlr->opts.use_cmb_sqs = false;
 	}
 
diff --git a/lib/nvme/nvme_internal.h b/lib/nvme/nvme_internal.h
index 62eb5da75..7b6883d82 100644
--- a/lib/nvme/nvme_internal.h
+++ b/lib/nvme/nvme_internal.h
@@ -139,7 +139,6 @@ enum nvme_payload_type {
  */
 enum spdk_nvme_ctrlr_flags {
 	SPDK_NVME_CTRLR_SGL_SUPPORTED		= 0x1, /**< The SGL is supported */
-	SPDK_NVME_CTRLR_CMB_SQ_SUPPORTED	= 0x2, /**< The submission queue in controller memory buffer is supported */
 };
 
 /**