diff --git a/.changeset/thirty-knives-hunt.md b/.changeset/thirty-knives-hunt.md
new file mode 100644
index 0000000000..d2ad234495
--- /dev/null
+++ b/.changeset/thirty-knives-hunt.md
@@ -0,0 +1,5 @@
+---
+'@lit-labs/virtualizer': patch
+---
+
+Added missing "events.js.map" sourcemap file.
diff --git a/packages/labs/virtualizer/package.json b/packages/labs/virtualizer/package.json
index d7a97ac6e6..806e12fbe0 100644
--- a/packages/labs/virtualizer/package.json
+++ b/packages/labs/virtualizer/package.json
@@ -103,7 +103,7 @@
     "/layouts/shared/*.{d.ts,d.ts.map,js,js.map}",
     "/polyfillLoaders/*.{d.ts,d.ts.map,js,js.map}",
     "/polyfills/resize-observer-polyfill/ResizeObserver.{d.ts,js}",
-    "/events.{js,d.ts,d.ts.map}",
+    "/events.{js,d.ts,d.ts.map,js.map}",
     "/lit-virtualizer.{d.ts,d.ts.map,js,js.map}",
     "/virtualize.{d.ts,d.ts.map,js,js.map}",
     "/Virtualizer.{d.ts,d.ts.map,js,js.map}",