diff --git a/src/file/file.ts b/src/file/file.ts
index ddc55841b3..866ddd1480 100644
--- a/src/file/file.ts
+++ b/src/file/file.ts
@@ -160,6 +160,8 @@ export class File {
     public createInternalHyperLink(anchor: string, text?: string): Hyperlink {
         text = text === undefined ? anchor : text;
         const hyperlink = new Hyperlink(text, this.docRelationships.RelationshipCount, anchor);
+        // NOTE: unlike File#createHyperlink(), since the link is to an internal bookmark
+        // we don't need to create a new relationship.
         return hyperlink;
     }
 
diff --git a/src/file/paragraph/links/bookmark.spec.ts b/src/file/paragraph/links/bookmark.spec.ts
new file mode 100644
index 0000000000..08d0aec91c
--- /dev/null
+++ b/src/file/paragraph/links/bookmark.spec.ts
@@ -0,0 +1,42 @@
+import { assert } from "chai";
+
+import { Utility } from "../../../tests/utility";
+import { Bookmark } from "./";
+
+describe("Bookmark", () => {
+    let bookmark: Bookmark;
+
+    beforeEach(() => {
+        bookmark = new Bookmark("anchor", "Internal Link", 0);
+    });
+
+    it("should create a bookmark with three root elements", () => {
+        const newJson = Utility.jsonify(bookmark);
+        assert.equal(newJson.rootKey, undefined);
+        assert.equal(newJson.start.rootKey, "w:bookmarkStart");
+        assert.equal(newJson.text.rootKey, "w:r");
+        assert.equal(newJson.end.rootKey, "w:bookmarkEnd");
+    });
+
+    it("should create a bookmark with the correct attributes on the bookmark start element", () => {
+        const newJson = Utility.jsonify(bookmark);
+        const attributes = {
+            name: "anchor",
+            id: "1",
+        };
+        assert.equal(JSON.stringify(newJson.start.root[0].root), JSON.stringify(attributes));
+    });
+
+    it("should create a bookmark with the correct attributes on the text element", () => {
+        const newJson = Utility.jsonify(bookmark);
+        assert.equal(JSON.stringify(newJson.text.root[1].root[1]), JSON.stringify("Internal Link"));
+    });
+
+    it("should create a bookmark with the correct attributes on the bookmark end element", () => {
+        const newJson = Utility.jsonify(bookmark);
+        const attributes = {
+            id: "1",
+        };
+        assert.equal(JSON.stringify(newJson.end.root[0].root), JSON.stringify(attributes));
+    });
+});
diff --git a/src/file/paragraph/links/bookmark.ts b/src/file/paragraph/links/bookmark.ts
index 661ca4118a..de4fabdaa2 100644
--- a/src/file/paragraph/links/bookmark.ts
+++ b/src/file/paragraph/links/bookmark.ts
@@ -16,7 +16,7 @@ export class Bookmark {
     constructor(name: string, text: string, relationshipsCount: number) {
         this.linkId = relationshipsCount + 1;
 
-        this.start = new BookmarkStart(name, text, this.linkId);
+        this.start = new BookmarkStart(name, this.linkId);
         this.text = new TextRun(text);
         this.end = new BookmarkEnd(this.linkId);
     }
@@ -25,7 +25,7 @@ export class Bookmark {
 export class BookmarkStart extends XmlComponent {
     public linkId: number;
 
-    constructor(name: string, text: string, relationshipsCount: number) {
+    constructor(name: string, relationshipsCount: number) {
         super("w:bookmarkStart");
 
         this.linkId = relationshipsCount;
diff --git a/src/file/paragraph/links/hyperlink.spec.ts b/src/file/paragraph/links/hyperlink.spec.ts
index e3f0b58c49..d6432b432a 100644
--- a/src/file/paragraph/links/hyperlink.spec.ts
+++ b/src/file/paragraph/links/hyperlink.spec.ts
@@ -20,8 +20,8 @@ describe("Hyperlink", () => {
         it("should create a hyperlink with right attributes", () => {
             const newJson = Utility.jsonify(hyperlink);
             const attributes = {
-                id: "rId1",
                 history: 1,
+                id: "rId1",
             };
             assert.equal(JSON.stringify(newJson.root[0].root), JSON.stringify(attributes));
         });
@@ -36,5 +36,20 @@ describe("Hyperlink", () => {
             };
             expect(tree["w:hyperlink"][1]).to.deep.equal(runJson);
         });
+
+        describe("with optional anchor parameter", () => {
+            beforeEach(() => {
+                hyperlink = new Hyperlink("Anchor Text", 0, "anchor");
+            });
+
+            it("should create an internal link with anchor tag", () => {
+                const newJson = Utility.jsonify(hyperlink);
+                const attributes = {
+                    history: 1,
+                    anchor: "anchor",
+                };
+                assert.equal(JSON.stringify(newJson.root[0].root), JSON.stringify(attributes));
+            });
+        });
     });
 });