diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 609cab55..e36c4c3e 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -39,7 +39,7 @@ jobs:
     uses: alphagov/govuk-infrastructure/.github/workflows/build-and-push-image.yml@main
     with:
       gitRef: ${{ inputs.gitRef || github.ref }}
-      ecrRepositoryName: ${{ inputs.ecrRepositoryName }}
+      ecrRepositoryName: ${{ inputs.ecrRepositoryName || 'content-store' }}
     secrets:
       AWS_ACCESS_KEY_ID: ${{ secrets.AWS_GOVUK_ECR_ACCESS_KEY_ID }}
       AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_GOVUK_ECR_SECRET_ACCESS_KEY }}