diff --git a/project/src/controllers/BuildController.ts b/project/src/controllers/BuildController.ts
index d378bd27..25e9e24c 100644
--- a/project/src/controllers/BuildController.ts
+++ b/project/src/controllers/BuildController.ts
@@ -193,6 +193,9 @@ export class BuildController
         this.logger.error(`Unable to delete preset, cannot find ${id} in weapon, equipment or magazine presets`);
     }
 
+    /**
+     * Handle client/builds/magazine/save
+     */
     public createMagazineTemplate(sessionId: string, request: ISetMagazineRequest): void
     {
         const result: IMagazineBuild = {
@@ -206,6 +209,11 @@ export class BuildController
 
         const profile = this.profileHelper.getFullProfile(sessionId);
 
+        if (!profile.userbuilds.magazineBuilds)
+        {
+            profile.userbuilds.magazineBuilds = [];
+        }
+
         const existingArrayId = profile.userbuilds.magazineBuilds.findIndex(item => item.Name === request.Name);
 
         if (existingArrayId === -1)