diff --git a/src/start.ts b/src/start.ts
index 0d0d5e5a..145b2147 100644
--- a/src/start.ts
+++ b/src/start.ts
@@ -153,7 +153,9 @@ function createNoopMeterProvider() {
     },
     // AWS Lambda instrumentation check for the existence of forceFlush,
     // if it does not exist, an error is logged for each span.
-    forceFlush() {},
+    forceFlush() {
+      return Promise.resolve();
+    },
   };
 }