diff --git a/packages/default-storage/src/helpers.ts b/packages/default-storage/src/helpers.ts
index 5bea188a..577e585b 100644
--- a/packages/default-storage/src/helpers.ts
+++ b/packages/default-storage/src/helpers.ts
@@ -54,6 +54,7 @@ export function convertError(error?: ErrorLike): Error | null {
   }
 
   const out = new Error(error.message);
+  // @ts-expect-error Ignoring to keep backward compatibility
   out["key"] = error.key;
   return out;
 }
diff --git a/packages/default-storage/src/types.ts b/packages/default-storage/src/types.ts
index 06248d09..99ec4cc4 100644
--- a/packages/default-storage/src/types.ts
+++ b/packages/default-storage/src/types.ts
@@ -24,7 +24,7 @@ export type MultiRequest = {
   callback?: MultiGetCallback;
   keyIndex: number;
   resolve?: (result: readonly KeyValuePair[]) => void;
-  reject?: (error?: ErrorLike) => void;
+  reject?: (error?: Error) => void;
 };
 
 export type AsyncStorageHook = {
diff --git a/packages/default-storage/tsconfig.json b/packages/default-storage/tsconfig.json
index e2d92b76..69a29920 100644
--- a/packages/default-storage/tsconfig.json
+++ b/packages/default-storage/tsconfig.json
@@ -10,5 +10,5 @@
       "expect-webdriverio"
     ]
   },
-  "include": ["example/**/*.ts", "example/**/*.tsx"]
+  "include": ["example/**/*.ts", "example/**/*.tsx", "src"]
 }