diff --git a/packages/nodes-base/nodes/Gitlab/Gitlab.node.ts b/packages/nodes-base/nodes/Gitlab/Gitlab.node.ts
index ce61e16b09..88395f2eb8 100644
--- a/packages/nodes-base/nodes/Gitlab/Gitlab.node.ts
+++ b/packages/nodes-base/nodes/Gitlab/Gitlab.node.ts
@@ -1606,7 +1606,13 @@ export class Gitlab implements INodeType {
 						body.commit_message = this.getNodeParameter('commitMessage', i) as string;
 
 						if (additionalParameters.author) {
-							body.author = additionalParameters.author;
+							const author = additionalParameters.author as IDataObject;
+							if (author.name) {
+								body.author_name = author.name;
+							}
+							if (author.email) {
+								body.author_email = author.email;
+							}
 						}
 						if (
 							additionalParameters.branchStart &&
@@ -1648,7 +1654,13 @@ export class Gitlab implements INodeType {
 							{},
 						) as IDataObject;
 						if (additionalParameters.author) {
-							body.author = additionalParameters.author;
+							const author = additionalParameters.author as IDataObject;
+							if (author.name) {
+								body.author_name = author.name;
+							}
+							if (author.email) {
+								body.author_email = author.email;
+							}
 						}
 						body.branch = this.getNodeParameter('branch', i) as string;
 						body.commit_message = this.getNodeParameter('commitMessage', i) as string;