diff --git a/yaml/xyz/openbmc_project/Inventory/Item/Dimm.interface.yaml b/yaml/xyz/openbmc_project/Inventory/Item/Dimm.interface.yaml
index d3a7df7..0a18cfb 100644
--- a/yaml/xyz/openbmc_project/Inventory/Item/Dimm.interface.yaml
+++ b/yaml/xyz/openbmc_project/Inventory/Item/Dimm.interface.yaml
@@ -216,6 +216,9 @@
           - name: HBM2
             description: >
                 High Bandwidth Memory Generation 2.
+          - name: HBM3
+            description: >
+                High Bandwidth Memory Generation 3.
           - name: DDR2_SDRAM_FB_DIMM_PROB
             description: >
                 DDR2 SDRAM Fully Buffered DIMM PROBE.