1 files changed, 2 insertions, 0 deletions
diff --git a/src/tol.ts b/src/tol.ts
index aa9a9b1..59ecadc 100644
--- a/src/tol.ts
+++ b/src/tol.ts
@@ -6,6 +6,7 @@
 export type TolMap = Map<string, TolNode>;
 // Represents a tree-of-life node
 export class TolNode {
+	otolId: string | null;
 	children: string[];
 	parent: string | null;
 	tips: number;
@@ -13,6 +14,7 @@ export class TolNode {
 	commonName: null | string;
 	imgName: null | string | [string, string] | [null, string] | [string, null];
 	constructor(children: string[] = [], parent = null, tips = 0, pSupport = false){
+		this.otolId = null;
 		this.children = children;
 		this.parent = parent;
 		this.tips = tips;