diff --git a/ts/docx/paragraph/tab-stop.ts b/ts/docx/paragraph/tab-stop.ts
index 1f079d31f6..f531f6ba84 100644
--- a/ts/docx/paragraph/tab-stop.ts
+++ b/ts/docx/paragraph/tab-stop.ts
@@ -10,7 +10,7 @@ class TabStop extends XmlComponent {
 
 class Tab extends XmlComponent {
 
-    constructor(value: string, position: any) {
+    constructor(value: string, position: string | number) {
         super("w:tab");
         this.root.push(new Attributes({
             val: value,
diff --git a/ts/docx/xml-components/attributes.ts b/ts/docx/xml-components/attributes.ts
index b47ad23261..126a040699 100644
--- a/ts/docx/xml-components/attributes.ts
+++ b/ts/docx/xml-components/attributes.ts
@@ -19,7 +19,7 @@ interface IAttributesProperties {
     footer?: string;
     gutter?: string;
     linePitch?: string;
-    pos?: string;
+    pos?: string | number; // Little strange. Perhaps it is normal. Need to clarify in the spec.
 }
 
 export class Attributes extends XmlAttributeComponent {
diff --git a/ts/export/packer/express.ts b/ts/export/packer/express.ts
index e0be8b3cae..088d5f3a11 100644
--- a/ts/export/packer/express.ts
+++ b/ts/export/packer/express.ts
@@ -3,12 +3,13 @@ import * as fs from "fs";
 import { Document } from "../../docx/document";
 import { Numbering } from "../../numbering";
 import { Properties } from "../../properties";
+import { Styles } from "../../styles";
 import { Packer } from "./packer";
 
 export class ExpressPacker extends Packer {
     private res: express.Response;
 
-    constructor(document: Document, res: express.Response, styles?: any, properties?: Properties, numbering?: Numbering) {
+    constructor(document: Document, res: express.Response, styles?: Styles, properties?: Properties, numbering?: Numbering) {
         super(document, styles, properties, numbering);
         this.res = res;
 
diff --git a/ts/export/packer/local.ts b/ts/export/packer/local.ts
index ac07f0bb9d..6b8c371c94 100644
--- a/ts/export/packer/local.ts
+++ b/ts/export/packer/local.ts
@@ -2,12 +2,13 @@ import * as fs from "fs";
 import { Document } from "../../docx/document";
 import { Numbering } from "../../numbering";
 import { Properties } from "../../properties";
+import { Styles } from "../../styles";
 import { Packer } from "./packer";
 
 export class LocalPacker extends Packer {
     private stream: fs.WriteStream;
 
-    constructor(document: Document, styles?: any, properties?: Properties, numbering?: Numbering) {
+    constructor(document: Document, styles?: Styles, properties?: Properties, numbering?: Numbering) {
         super(document, styles, properties, numbering);
     }
 
diff --git a/ts/export/packer/packer.ts b/ts/export/packer/packer.ts
index e8f0f96a63..e1104ec3da 100644
--- a/ts/export/packer/packer.ts
+++ b/ts/export/packer/packer.ts
@@ -17,7 +17,7 @@ export abstract class Packer {
     private properties: Properties;
     private numbering: Numbering;
 
-    constructor(document: Document, style?: any, properties?: Properties, numbering?: Numbering) {
+    constructor(document: Document, style?: Styles, properties?: Properties, numbering?: Numbering) {
         this.formatter = new Formatter();
         this.document = document;
         this.style = style;