diff --git a/packages/lit-node-client-nodejs/src/lib/lit-node-client-nodejs.ts b/packages/lit-node-client-nodejs/src/lib/lit-node-client-nodejs.ts
index e654174890..db31ff00f7 100644
--- a/packages/lit-node-client-nodejs/src/lib/lit-node-client-nodejs.ts
+++ b/packages/lit-node-client-nodejs/src/lib/lit-node-client-nodejs.ts
@@ -1869,7 +1869,7 @@ export class LitNodeClientNodeJs
       res = await this.handleNodePromises(
         nodePromises,
         requestId,
-        this.connectedNodes.size
+        this.config.minNodeCount
       );
       log('signSessionKey node promises:', res);
     } catch (e) {
@@ -1934,7 +1934,11 @@ export class LitNodeClientNodeJs
         for (const field of requiredFields) {
           const key: keyof BlsResponseData = field as keyof BlsResponseData;
 
-          if (!data[key] || data[key] === '') {
+          if (
+            data[key] === undefined ||
+            data[key] === null ||
+            data[key] === ''
+          ) {
             log(
               `[signSessionKey] Invalid signed data. "${field}" is missing. Not a problem, we only need ${this.config.minNodeCount} nodes to sign the session key.`
             );