diff --git a/module/bdev/nvme/bdev_nvme.c b/module/bdev/nvme/bdev_nvme.c
index 6f2b0cb3f..a71ac0ed0 100644
--- a/module/bdev/nvme/bdev_nvme.c
+++ b/module/bdev/nvme/bdev_nvme.c
@@ -3898,7 +3898,7 @@ nvme_ctrlr_init_ana_log_page(struct nvme_ctrlr *nvme_ctrlr,
 	cdata = spdk_nvme_ctrlr_get_data(ctrlr);
 
 	ana_log_page_size = sizeof(struct spdk_nvme_ana_page) + cdata->nanagrpid *
-			    sizeof(struct spdk_nvme_ana_group_descriptor) + cdata->nn *
+			    sizeof(struct spdk_nvme_ana_group_descriptor) + cdata->mnan *
 			    sizeof(uint32_t);
 
 	nvme_ctrlr->ana_log_page = spdk_zmalloc(ana_log_page_size, 64, NULL,
diff --git a/test/unit/lib/bdev/nvme/bdev_nvme.c/bdev_nvme_ut.c b/test/unit/lib/bdev/nvme/bdev_nvme.c/bdev_nvme_ut.c
index d0c9f37ac..5664b358a 100644
--- a/test/unit/lib/bdev/nvme/bdev_nvme.c/bdev_nvme_ut.c
+++ b/test/unit/lib/bdev/nvme/bdev_nvme.c/bdev_nvme_ut.c
@@ -407,6 +407,7 @@ ut_attach_ctrlr(const struct spdk_nvme_transport_id *trid, uint32_t num_ns,
 		}
 
 		ctrlr->cdata.nn = num_ns;
+		ctrlr->cdata.mnan = num_ns;
 		ctrlr->cdata.nanagrpid = num_ns;
 	}