diff --git a/include/block/nvme.h b/include/block/nvme.h
index 07cfc92936..f1d3a78658 100644
--- a/include/block/nvme.h
+++ b/include/block/nvme.h
@@ -1034,6 +1034,10 @@ enum NvmeIdCtrlLpa {
     NVME_LPA_EXTENDED = 1 << 2,
 };
 
+enum NvmeIdCtrlCmic {
+    NVME_CMIC_MULTI_CTRL    = 1 << 1,
+};
+
 #define NVME_CTRL_SQES_MIN(sqes) ((sqes) & 0xf)
 #define NVME_CTRL_SQES_MAX(sqes) (((sqes) >> 4) & 0xf)
 #define NVME_CTRL_CQES_MIN(cqes) ((cqes) & 0xf)