diff --git a/packages/nodes-base/nodes/Mautic/Mautic.node.ts b/packages/nodes-base/nodes/Mautic/Mautic.node.ts
index b820e4570f..86fa2d7556 100644
--- a/packages/nodes-base/nodes/Mautic/Mautic.node.ts
+++ b/packages/nodes-base/nodes/Mautic/Mautic.node.ts
@@ -623,7 +623,7 @@ export class Mautic implements INodeType {
 							body.lastActive = additionalFields.lastActive as string;
 						}
 						if (additionalFields.ownerId) {
-							body.ownerId = additionalFields.ownerId as string;
+							body.owner = additionalFields.ownerId as string;
 						}
 						if (additionalFields.addressUi) {
 							const addressValues = (additionalFields.addressUi as IDataObject)
@@ -738,7 +738,7 @@ export class Mautic implements INodeType {
 							body.lastActive = updateFields.lastActive as string;
 						}
 						if (updateFields.ownerId) {
-							body.ownerId = updateFields.ownerId as string;
+							body.owner = updateFields.ownerId as string;
 						}
 						if (updateFields.addressUi) {
 							const addressValues = (updateFields.addressUi as IDataObject)