diff --git a/knockout/knockout.d.ts b/knockout/knockout.d.ts
index 9c4e02bd8..71252985d 100644
--- a/knockout/knockout.d.ts
+++ b/knockout/knockout.d.ts
@@ -123,9 +123,14 @@ interface KnockoutBindingContext {
     createChildContext(dataItemOrAccessor: any, dataItemAlias?: any, extendCallback?: Function): any;
 }
 
+interface KnockoutAllBindingsAccessor {
+    (): any;
+    get(bindingName: string): any;
+}
+
 interface KnockoutBindingHandler {
-    init?(element: any, valueAccessor: () => any, allBindingsAccessor: () => any, viewModel: any, bindingContext: KnockoutBindingContext): void;
-    update?(element: any, valueAccessor: () => any, allBindingsAccessor: () => any, viewModel: any, bindingContext: KnockoutBindingContext): void;
+    init?(element: any, valueAccessor: () => any, allBindingsAccessor: KnockoutAllBindingsAccessor, viewModel: any, bindingContext: KnockoutBindingContext): void;
+    update?(element: any, valueAccessor: () => any, allBindingsAccessor: KnockoutAllBindingsAccessor, viewModel: any, bindingContext: KnockoutBindingContext): void;
     options?: any;
 }
 
diff --git a/knockout/tests/knockout-tests.ts b/knockout/tests/knockout-tests.ts
index 1ebef13ef..da5d1e65a 100644
--- a/knockout/tests/knockout-tests.ts
+++ b/knockout/tests/knockout-tests.ts
@@ -581,4 +581,21 @@ function test_misc() {
 		}
 	}
 	
+}
+
+interface KnockoutBindingHandlers {
+    allBindingsAccessorTest: KnockoutBindingHandler;
+}
+
+function test_allBindingsAccessor() {
+    ko.bindingHandlers.allBindingsAccessorTest = {
+        init: (element: any, valueAccessor: () => any, allBindingsAccessor: KnockoutAllBindingsAccessor, viewModel: any, bindingContext: KnockoutBindingContext) => {
+            var allBindings = allBindingsAccessor();
+            var myBinding = allBindingsAccessor.get("myBindingName");
+        },
+        update: (element: any, valueAccessor: () => any, allBindingsAccessor: KnockoutAllBindingsAccessor, viewModel: any, bindingContext: KnockoutBindingContext) => {
+            var allBindings = allBindingsAccessor();
+            var myBinding = allBindingsAccessor.get("myBindingName");
+        }
+    };
 }
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