diff --git a/packages/@aws-cdk/core/lib/names.ts b/packages/@aws-cdk/core/lib/names.ts
index e68b43b137bf0..ea75927acb5ed 100644
--- a/packages/@aws-cdk/core/lib/names.ts
+++ b/packages/@aws-cdk/core/lib/names.ts
@@ -1,4 +1,4 @@
-import { Construct, Node } from 'constructs';
+import { IConstruct, Node } from 'constructs';
 import { makeUniqueId } from './private/uniqueid';
 
 /**
@@ -14,7 +14,7 @@ export class Names {
    * @param construct The construct
    * @returns a unique id based on the construct path
    */
-  public static uniqueId(construct: Construct): string {
+  public static uniqueId(construct: IConstruct): string {
     const node = Node.of(construct);
     const components = node.scopes.slice(1).map(c => Node.of(c).id);
     return components.length > 0 ? makeUniqueId(components) : '';