diff --git a/src/public/types/dexie-constructor.d.ts b/src/public/types/dexie-constructor.d.ts
index c0f7faccf..6c22e77ba 100644
--- a/src/public/types/dexie-constructor.d.ts
+++ b/src/public/types/dexie-constructor.d.ts
@@ -55,6 +55,7 @@ export interface DexieConstructor extends DexieExceptionClasses {
   dependencies: DexieDOMDependencies;
   default: Dexie; // Work-around for different build tools handling default imports differently.
   cache: GlobalQueryCache;
+  debug: false | true | 'dexie';
 
   Promise: PromiseExtendedConstructor;
   //TableSchema: {}; // Deprecate!