diff --git a/libs/nshmp-ws/gmm-services/gmm-usage.model.ts b/libs/nshmp-ws/gmm-services/gmm-usage.model.ts
index a6978831bd4c7bec66a6b8a6d157cd5b18959683..e52ffb4fc7c285310653e88e7c613b09bf1cf68b 100644
--- a/libs/nshmp-ws/gmm-services/gmm-usage.model.ts
+++ b/libs/nshmp-ws/gmm-services/gmm-usage.model.ts
@@ -28,6 +28,7 @@ export enum GmmType {
 
 export enum GmmGroupType {
   ALL = 'ALL',
+  ALASKA = 'ALASKA',
   ACTIVE_CRUST = 'ACTIVE_CRUST',
   STABLE_CRUST = 'STABLE_CRUST',
   SUBDUCTION_INTERFACE = 'SUBDUCTION_INTERFACE',