diff --git a/examples/webgl/Cargo.toml b/examples/webgl/Cargo.toml
index 6f2ec374..96dd71c8 100644
--- a/examples/webgl/Cargo.toml
+++ b/examples/webgl/Cargo.toml
@@ -2,6 +2,7 @@
 name = "webgl"
 version = "0.1.0"
 authors = ["The wasm-bindgen Developers"]
+edition = "2018"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/examples/webgl/src/lib.rs b/examples/webgl/src/lib.rs
index 1916ee7c..f0ced9f0 100644
--- a/examples/webgl/src/lib.rs
+++ b/examples/webgl/src/lib.rs
@@ -1,7 +1,3 @@
-extern crate js_sys;
-extern crate wasm_bindgen;
-extern crate web_sys;
-
 use js_sys::WebAssembly;
 use wasm_bindgen::prelude::*;
 use wasm_bindgen::JsCast;