diff --git a/types/vexflow/index.d.ts b/types/vexflow/index.d.ts
index 87510ffd4d..efffc990ca 100644
--- a/types/vexflow/index.d.ts
+++ b/types/vexflow/index.d.ts
@@ -1,4 +1,4 @@
-// Type definitions for VexFlow v1.2.88
+// Type definitions for VexFlow v3.0.9
 // Project: http://vexflow.com
 // Definitions by: Roman Quiring <https://github.com/rquiring>
 //                 Sebastian Haas <https://github.com/sebastianhaas>
@@ -570,6 +570,10 @@ declare namespace Vex {
 
         class Formatter {
             static DEBUG: boolean;
+            constructor(options?: {
+                softmaxFactor?: number,
+                maxIterations?: number
+            });
             static FormatAndDraw(
                 ctx: IRenderContext,
                 stave: Stave,
diff --git a/types/vexflow/vexflow-tests.ts b/types/vexflow/vexflow-tests.ts
index a7fdf7583b..b84f9d6551 100644
--- a/types/vexflow/vexflow-tests.ts
+++ b/types/vexflow/vexflow-tests.ts
@@ -46,7 +46,8 @@ var voice2 = new Vex.Flow.Voice(Vex.Flow.TIME4_4).addTickables([
 ]);
 
 // Format and justify the notes to 550 pixels
-var formatter = new Vex.Flow.Formatter().joinVoices([voice1, voice2]).format([voice1, voice2], 550);
+var formatter = new Vex.Flow.Formatter({softmaxFactor: null, maxIterations: 2})
+    .joinVoices([voice1, voice2]).format([voice1, voice2], 550);
 
 // Render stave
 stave.draw();