diff --git a/CHANGELOG.md b/CHANGELOG.md
index dc8cad6c360..1f6d970144c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@
 - Implement an in-memory cache store to save parsed and validated documents and provide performance benefits for repeat executions of the same document. [PR #2111](https://github.com/apollographql/apollo-server/pull/2111) (`>=2.4.0-alpha.0`)
 - Fix: Serialize arrays as JSON on fetch in `RESTDataSource`. [PR #2219](https://github.com/apollographql/apollo-server/pull/2219)
 - Fix: The `privateHeaders` configuration for `apollo-engine-reporting` now allows headers to be specified using any case and lower-cases them prior to comparison. [PR #2276](https://github.com/apollographql/apollo-server/pull/2276)
+- Fix broken `apollo-server-azure-functions` TypeScript definitions. [PR #2287](https://github.com/apollographql/apollo-server/pull/2287)
 
 ### v2.3.3
 
diff --git a/packages/apollo-server-azure-functions/src/azureFunctions.d.ts b/packages/apollo-server-azure-functions/src/azureFunctions.ts
similarity index 100%
rename from packages/apollo-server-azure-functions/src/azureFunctions.d.ts
rename to packages/apollo-server-azure-functions/src/azureFunctions.ts