diff --git a/utils/build/externs.js b/utils/build/externs.js
index 0524c1d9a8c79..e8dd5874403ec 100644
--- a/utils/build/externs.js
+++ b/utils/build/externs.js
@@ -6,5 +6,5 @@ var performance;
 var createImageBitmap;
 var WebGL2RenderingContext;
 var WebGL2ComputeRenderingContext;
-var XRHands;
+var XRHand;
 var XRWebGLLayer;