diff --git a/dist/tags/base.d.ts b/dist/tags/base.d.ts
index 83507cf..0873e12 100644
--- a/dist/tags/base.d.ts
+++ b/dist/tags/base.d.ts
@@ -32,7 +32,7 @@ export declare class TagCollection implements TagCollectionType {
     tags: TagType[];
     map: Map<string, TagType[]>;
     constructor(tags: TagType[]);
-    getByName(name: string): TagType;
+    getByName(name: string): TagType | undefined;
     getByElementName(element: string): TagType | undefined;
 }
 export {};
diff --git a/src/ts/tags/base.ts b/src/ts/tags/base.ts
index be9c6d1..7c3657a 100644
--- a/src/ts/tags/base.ts
+++ b/src/ts/tags/base.ts
@@ -157,7 +157,7 @@ export class TagCollection implements TagCollectionType {
         }
     }
 
-    getByName(name: string) {
+    getByName(name: string): TagType | undefined {
         return this.tags.filter(t => {
             t.constructor.name == name
         })[0] || undefined;