diff --git a/types/index.d.ts b/types/index.d.ts
index f983846..cba10a5 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -56,6 +56,7 @@ declare class MockAdapter {
   constructor(axiosInstance: AxiosInstance, options?: MockAdapterOptions);
 
   adapter(): AxiosAdapter;
+  originalAdapter(): AxiosAdapter;
   reset(): void;
   resetHandlers(): void;
   resetHistory(): void;
diff --git a/types/test.ts b/types/test.ts
index 8c088c2..b583722 100644
--- a/types/test.ts
+++ b/types/test.ts
@@ -25,6 +25,10 @@ namespace ExposesAdapter {
   mock.adapter();
 }
 
+namespace ExposesOriginalAdapter {
+  mock.originalAdapter();
+}
+
 namespace SupportsReset {
   mock.reset();
 }