diff --git a/browserify/browserify-tests.ts.tscparams b/browserify/browserify-tests.ts.tscparams
deleted file mode 100644
index e16c76dff8..0000000000
--- a/browserify/browserify-tests.ts.tscparams
+++ /dev/null
@@ -1 +0,0 @@
-""
diff --git a/browserify/browserify.d.ts b/browserify/browserify.d.ts
index cfdce2da21..d66bf5a5f4 100644
--- a/browserify/browserify.d.ts
+++ b/browserify/browserify.d.ts
@@ -5,26 +5,23 @@
 
 /// <reference path="../node/node.d.ts" />
 
-interface BrowserifyObject {
-	add(file: string);
+interface BrowserifyObject extends EventEmitter {
+	add(file: string): BrowserifyObject;
 	require(file: string, opts?: {
 		expose: string;
-	});
+	}): BrowserifyObject;
 	bundle(opts?: {
 		insertGlobals?: boolean;
 		detectGlobals?: boolean;
 		debug?: boolean;
 		standalone?: string;
-		insertGlobalVars? ;
-	}, cb?: (err, src) => void): ReadableStream;
+		insertGlobalVars?: any;
+	}, cb?: (err: any, src: any) => void): ReadableStream;
 
-	external(file: string);
-	ignore(file: string);
-	transform(tr: string);
-	transform(tr: Function);
-
-	on(event: string, action: Function): void;
-	on(event: "file", action: (file, id, parent) => void);
+	external(file: string): BrowserifyObject;
+	ignore(file: string): BrowserifyObject;
+	transform(tr: string): BrowserifyObject;
+	transform(tr: Function): BrowserifyObject;
 }
 
 declare module "browserify" {
diff --git a/browserify/browserify.d.ts.tscparams b/browserify/browserify.d.ts.tscparams
deleted file mode 100644
index e16c76dff8..0000000000
--- a/browserify/browserify.d.ts.tscparams
+++ /dev/null
@@ -1 +0,0 @@
-""