diff --git a/src/tedious.ts b/src/tedious.ts
index 8831e4524..056a8e8e0 100644
--- a/src/tedious.ts
+++ b/src/tedious.ts
@@ -28,3 +28,7 @@ export {
   ISOLATION_LEVEL,
   TDS_VERSION
 };
+
+export type {
+  ConnectionConfiguration
+};