diff --git a/ci/tests/smoke.js b/ci/tests/smoke.js
index 503442b17..38c72beab 100755
--- a/ci/tests/smoke.js
+++ b/ci/tests/smoke.js
@@ -37,6 +37,7 @@ const tests = [
   {engine: 'diagramsnet', file: 'diagramsnet-ui.xml', options: {}, outputFormat: ['svg', 'png']},
   {engine: 'diagramsnet', file: 'diagramsnet-venn.xml', options: {}, outputFormat: ['svg', 'png']},
   {engine: 'd2', file: 'connections.d2', options: {}, outputFormat: ['svg']},
+  {engine: 'd2', file: 'connections.d2', options: {layout: 'elk'}, outputFormat: ['svg']},
   {engine: 'd2', file: 'connections.d2', options: {sketch: 'true'}, outputFormat: ['svg']},
   {engine: 'wireviz', file: 'wireviz.yaml', options: {}, outputFormat: ['svg', 'png']},
   {engine: 'tikz', file: 'periodic-table.tex', options: {}, outputFormat: ['jpeg', 'pdf', 'png', 'svg']}