diff --git a/blocks/blocks.d.ts b/blocks/blocks.d.ts
index ad492333e..6e57ec762 100644
--- a/blocks/blocks.d.ts
+++ b/blocks/blocks.d.ts
@@ -579,6 +579,8 @@ interface ViewPrototype {
 		route?: any;
 		url?: string
 	};
+
+	[propertyName: string]: any;
 }
 
 /////////////////////////////////////////
@@ -643,6 +645,8 @@ interface ModelPrototype {
 		destroy?: { url?: string };
 		update?: { url?: string };
 	};
+
+	[propertyName: string]: string | boolean | Object | Validator;
 }
 
 /////////////////////////////////////////
@@ -682,6 +686,7 @@ interface CollectionPrototype {
 		destroy?: { url?: string };
 		update?: { url?: string };
 	};
+	[propertyName: string]: any;
 }
 
 interface Extendable<T> {