diff --git a/protos/dmi/hw.proto b/protos/dmi/hw.proto
index f7f15b3..d79da0a 100644
--- a/protos/dmi/hw.proto
+++ b/protos/dmi/hw.proto
@@ -274,6 +274,7 @@
         CFP = 12;
         CFP2_ACO = 13;
         CFP2_DCO = 14;
+        QSFP_DD = 15;
     }
 
     FormFactor form_factor = 1;