diff --git a/python/neuroglancer/static/__init__.py b/python/neuroglancer/static/__init__.py
index fa7c01915..ca4a79e55 100644
--- a/python/neuroglancer/static/__init__.py
+++ b/python/neuroglancer/static/__init__.py
@@ -22,6 +22,7 @@
     ".js": "application/javascript",
     ".html": "text/html",
     ".map": "application/json",
+    ".wasm": "application/wasm",
 }