diff --git a/packages/datadog-instrumentations/src/openai.js b/packages/datadog-instrumentations/src/openai.js
index 6ff0982b59e..c94b326f409 100644
--- a/packages/datadog-instrumentations/src/openai.js
+++ b/packages/datadog-instrumentations/src/openai.js
@@ -259,7 +259,7 @@ function wrapStreamIterator (response, options, n, ctx) {
   }
 }
 
-const extensions = ['js', 'mjs']
+const extensions = ['.js', '.mjs']
 
 for (const extension of extensions) {
   for (const shim of V4_PACKAGE_SHIMS) {