diff --git a/.changeset/orange-rings-own.md b/.changeset/orange-rings-own.md
new file mode 100644
index 00000000000..a9889e4db6c
--- /dev/null
+++ b/.changeset/orange-rings-own.md
@@ -0,0 +1,5 @@
+---
+"@firebase/webchannel-wrapper": patch
+---
+
+fix: Fix a typo in the webchannel-wrapper's package.json that affected ems5 exports.
diff --git a/packages/webchannel-wrapper/package.json b/packages/webchannel-wrapper/package.json
index 9fa97ba1c65..729b1aef8dc 100644
--- a/packages/webchannel-wrapper/package.json
+++ b/packages/webchannel-wrapper/package.json
@@ -14,7 +14,7 @@
     "./bloom-blob": {
       "types": "./dist/bloom-blob/bloom_blob_types.d.ts",
       "require": "./dist/bloom-blob/bloom_blob_es2018.js",
-      "es5": "./dist/bloom-blob/bloom_blob_es5.js",
+      "esm5": "./dist/bloom-blob/bloom_blob_es5.js",
       "default": "./dist/bloom-blob/esm/bloom_blob_es2018.js"
     },
     "./package.json": "./package.json"