diff --git a/packages/mermaid/src/diagrams/sankey/sankeyDB.ts b/packages/mermaid/src/diagrams/sankey/sankeyDB.ts
index 098f3938c..807c07cd1 100644
--- a/packages/mermaid/src/diagrams/sankey/sankeyDB.ts
+++ b/packages/mermaid/src/diagrams/sankey/sankeyDB.ts
@@ -14,8 +14,8 @@ import {
 // Sankey diagram represented by nodes and links between those nodes
 // We have to track nodes uniqueness (by ID), thats why we need a mapping also
 //
-let links: Array<SankeyLink> = [];
-let nodes: Array<SankeyNode> = [];
+let links: SankeyLink[] = [];
+let nodes: SankeyNode[] = [];
 let nodesMap: Record<string, SankeyNode> = {};
 let nodeAlign = 'justify';