diff --git a/packages/ide/src/client.ts b/packages/ide/src/client.ts
index 4cc659b89..ce600c713 100644
--- a/packages/ide/src/client.ts
+++ b/packages/ide/src/client.ts
@@ -6,7 +6,6 @@ import { upload } from "./upload";
 import { client } from "./fill/client";
 import { clipboard } from "./fill/clipboard";
 import { INotificationService, IProgressService } from "./fill/notification";
-import { IURIFactory } from "./fill/uri";
 
 /**
  * A general abstraction of an IDE client.
@@ -19,7 +18,6 @@ import { IURIFactory } from "./fill/uri";
 export abstract class IdeClient {
 	public readonly retry = retry;
 	public readonly clipboard = clipboard;
-	public readonly uriFactory: IURIFactory;
 	public readonly upload = upload;
 
 	private start: Time | undefined;
@@ -47,8 +45,6 @@ export abstract class IdeClient {
 			logger.info("Unloaded");
 		});
 
-		this.uriFactory = this.createUriFactory();
-
 		this.initialize().then(() => {
 			logger.info("Load completed", field("duration", this.loadTime));
 		}).catch((error) => {
@@ -134,9 +130,4 @@ export abstract class IdeClient {
 	 * Initialize the IDE.
 	 */
 	protected abstract initialize(): Promise<void>;
-
-	/**
-	 * Create URI factory.
-	 */
-	protected abstract createUriFactory(): IURIFactory;
 }
diff --git a/packages/ide/src/fill/uri.ts b/packages/ide/src/fill/uri.ts
deleted file mode 100644
index d3192ee34..000000000
--- a/packages/ide/src/fill/uri.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-export interface IURI {
-	readonly path: string;
-	readonly fsPath: string;
-	readonly scheme: string;
-}
-
-export interface IURIFactory {
-	/**
-	 * Convert the object to an instance of a real URI.
-	 */
-	create<T extends IURI>(uri: IURI): T;
-	file(path: string): IURI;
-	parse(raw: string): IURI;
-}
diff --git a/packages/ide/src/index.ts b/packages/ide/src/index.ts
index 9d3493fbe..5c75fbb15 100644
--- a/packages/ide/src/index.ts
+++ b/packages/ide/src/index.ts
@@ -1,6 +1,5 @@
 export * from "./client";
 export * from "./fill/clipboard";
 export * from "./fill/notification";
-export * from "./fill/uri";
 export * from "./retry";
 export * from "./upload";
diff --git a/packages/ide/src/upload.ts b/packages/ide/src/upload.ts
index 8faf19174..03305f6ff 100644
--- a/packages/ide/src/upload.ts
+++ b/packages/ide/src/upload.ts
@@ -3,9 +3,14 @@ import { appendFile } from "fs";
 import { promisify } from "util";
 import { logger, Logger } from "@coder/logger";
 import { escapePath } from "@coder/protocol";
-import { IURI } from "./fill/uri";
 import { NotificationService, INotificationService, ProgressService, IProgressService, IProgress, Severity } from "./fill/notification";
 
+export interface IURI {
+	readonly path: string;
+	readonly fsPath: string;
+	readonly scheme: string;
+}
+
 /**
  * Represents an uploadable directory, so we can query for existing files once.
  */
diff --git a/packages/vscode/src/client.ts b/packages/vscode/src/client.ts
index 98412764e..2488912b0 100644
--- a/packages/vscode/src/client.ts
+++ b/packages/vscode/src/client.ts
@@ -12,7 +12,7 @@ import "./fill/workbenchRegistry";
 import { PasteAction } from "./fill/paste";
 import "./fill/dom";
 import "./vscode.scss";
-import { IdeClient, IURI, IURIFactory, IProgress, INotificationHandle } from "@coder/ide";
+import { IdeClient, IProgress, INotificationHandle } from "@coder/ide";
 import { registerContextMenuListener } from "vs/base/parts/contextmenu/electron-main/contextmenu";
 import { LogLevel } from "vs/platform/log/common/log";
 import { URI } from "vs/base/common/uri";
@@ -144,16 +144,6 @@ export class Client extends IdeClient {
 		};
 	}
 
-	protected createUriFactory(): IURIFactory {
-		return {
-			// TODO: not sure why this is an error.
-			// tslint:disable-next-line no-any
-			create: <URI>(uri: IURI): URI => URI.from(uri) as any,
-			file: (path: string): IURI => URI.file(path),
-			parse: (raw: string): IURI => URI.parse(raw),
-		};
-	}
-
 	protected initialize(): Promise<void> {
 		registerContextMenuListener();
 
diff --git a/tslint.json b/tslint.json
index 0b4bc8e43..7edd84307 100644
--- a/tslint.json
+++ b/tslint.json
@@ -26,6 +26,7 @@
 		"no-redundant-jsdoc": true,
 		"no-implicit-dependencies": false,
 		"no-boolean-literal-compare": true,
+		"prefer-readonly": true,
 		"deprecation": true,
 		"semicolon": true,
 		"one-line": [