diff --git a/src/lib.ts b/src/lib.ts
index a40ece4..b838335 100644
--- a/src/lib.ts
+++ b/src/lib.ts
@@ -20,6 +20,7 @@ export type StorageProxy<TStorageDefinitions> = Partial<TStorageDefinitions> & {
   readonly [namespaceSymbol]: string;
   readonly [isStorageProxy]: true;
   readonly [storageTargetSymbol]: StorageTarget;
+  [storageProxyIntegrityKey]: string;
 };
 
 // --- Utilities ------------------------------------------------------------ //
diff --git a/tslint.json b/tslint.json
index da5e885..e23488f 100644
--- a/tslint.json
+++ b/tslint.json
@@ -9,7 +9,8 @@
       "singleQuote": true,
       "trailingComma": "all",
       "bracketSpacing": true,
-      "jsxBracketSameLine": true
+      "jsxBracketSameLine": true,
+      "variable-name": false,
     }]
   }
 }