diff --git a/build/tfs/linux/smoketest.sh b/build/tfs/linux/smoketest.sh
index 327d55b66d9..33344082253 100644
--- a/build/tfs/linux/smoketest.sh
+++ b/build/tfs/linux/smoketest.sh
@@ -29,5 +29,5 @@ step "Run smoke test" \
 	pushd test/smoke
 	npm install
 	npm run compile
-	xvfb-run -a node src/main.js --latest "$AGENT_BUILDDIRECTORY/VSCode-linux-ia32/code-insiders"
+	xvfb-run -a -s="-screen 0 1024x768x8" node src/main.js --latest "$AGENT_BUILDDIRECTORY/VSCode-linux-ia32/code-insiders"
 	popd
\ No newline at end of file