diff --git a/panorama-viewer.js b/panorama-viewer.js
index c74d46b..e29f506 100644
--- a/panorama-viewer.js
+++ b/panorama-viewer.js
@@ -133,7 +133,7 @@
 	};
 
 	let viewer = document.getElementById("viewer");
-	let gl = viewer.getContext("webgl");
+	let gl = viewer.getContext("webgl2");
 	let program = initShaderProgram(gl);
 	let modelMatrixLocation = gl.getUniformLocation(program, "modelMatrix");