diff --git a/types/snapsvg/index.d.ts b/types/snapsvg/index.d.ts
index a3397cedaa..489b771752 100644
--- a/types/snapsvg/index.d.ts
+++ b/types/snapsvg/index.d.ts
@@ -136,16 +136,19 @@ declare namespace Snap {
 
     export interface Element {
         add(el:Snap.Element):Snap.Element;
+        add(el:Snap.Set):Snap.Element;
         addClass(value:string):Snap.Element;
         after(el:Snap.Element):Snap.Element;
         align(el: Snap.Element, way: string):Snap.Element;
         animate(animation:any):Snap.Element;
         animate(attrs:{[attr:string]:string|number|boolean|any},duration:number,easing?:(num: number)=> number,callback?:()=>void):Snap.Element;
         append(el:Snap.Element):Snap.Element;
+        append(el:Snap.Set):Snap.Element;
         appendTo(el:Snap.Element):Snap.Element;
         asPX(attr:string,value?:string):number;            //TODO: check what is really returned
-        attr(param:string):string;
-        attr(params:{[attr:string]:string|number|boolean|any}):Snap.Element;
+        attr(param: "viewBox"): BBox;
+        attr(param: string): string;
+        attr(params:{[attr:string]:string|number|boolean|BBox|any}):Snap.Element;
         before(el:Snap.Element):Snap.Element;
         children(): Snap.Element[];
         clone():Snap.Element;
@@ -284,12 +287,14 @@ declare namespace Snap {
         rect(x:number,y:number,width:number,height:number,rx?:number,ry?:number):Snap.Element;
         text(x:number,y:number,text:string|number):Snap.Element;
         text(x:number,y:number,text:Array<string|number>):Snap.Element;
+        symbol(vbx:number,vby:number,vbw:number,vbh:number):Snap.Element;
     }
 
     export interface Set {
         animate(attrs:{[attr:string]:string|number|boolean|any},duration:number,easing?:(num:number)=>number,callback?:()=>void):Snap.Element;
         animate(...params:Array<{attrs:any,duration:number,easing:(num:number)=>number,callback?:()=>void}>):Snap.Element;
-        attr(params: {[attr:string]:string|number|boolean|any}): Snap.Element;
+        attr(params: {[attr:string]:string|number|boolean|BBox|any}): Snap.Element;
+        attr(param: "viewBox"): BBox;
         attr(param: string): string;
         bind(attr: string, callback: Function): Snap.Set;
         bind(attr:string,element:Snap.Element):Snap.Set;
diff --git a/types/snapsvg/test/2.ts b/types/snapsvg/test/2.ts
index 0ab83291bd..5afcf36460 100644
--- a/types/snapsvg/test/2.ts
+++ b/types/snapsvg/test/2.ts
@@ -125,6 +125,19 @@ function tester6() {
     console.log(!path.isPointInsideBBox(b3, 50, 50));
 }
 
+function tester7() {
+    var paper = Snap(600, 800);
+
+    Snap.load("http://snapsvg.io/assets/images/logo.svg", (fragment: Snap.Fragment) => {
+        // viewBox retrieveal
+        let fragmentViewBox = fragment.select("svg").attr("viewBox");
+        let symbol = paper.symbol(fragmentViewBox.x, fragmentViewBox.y, fragmentViewBox.width, fragmentViewBox.height);
+
+        symbol.add(fragment.selectAll("svg *"));
+        symbol.toDefs();
+   });
+}
+
 //$(function () {
 //    tester1();
 //});
@@ -134,3 +147,4 @@ function tester6() {
 //tester4();
 //tester5();
 //tester6();
+//tester7();