diff --git a/.changeset/bright-pumpkins-bake.md b/.changeset/bright-pumpkins-bake.md
new file mode 100644
index 0000000000..4c16e307ec
--- /dev/null
+++ b/.changeset/bright-pumpkins-bake.md
@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-scaffolder-backend': patch
+---
+
+Rename output parameter `mergeRequestURL` of `publish:gitlab:merge-request` action to `mergeRequestUrl`.
diff --git a/plugins/scaffolder-backend/src/scaffolder/actions/builtin/publish/gitlabMergeRequest.ts b/plugins/scaffolder-backend/src/scaffolder/actions/builtin/publish/gitlabMergeRequest.ts
index bb27410402..06e056cda3 100644
--- a/plugins/scaffolder-backend/src/scaffolder/actions/builtin/publish/gitlabMergeRequest.ts
+++ b/plugins/scaffolder-backend/src/scaffolder/actions/builtin/publish/gitlabMergeRequest.ts
@@ -127,7 +127,7 @@ export const createPublishGitlabMergeRequestAction = (options: {
             title: 'Gitlab Project path',
             type: 'string',
           },
-          mergeRequestURL: {
+          mergeRequestUrl: {
             title: 'MergeRequest(MR) URL',
             type: 'string',
             description: 'Link to the merge request in GitLab',