diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 5a91d3a..327f64f 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -22,7 +22,7 @@ jobs:
             base_image: "ubuntu:22.04",
             base_image_label: "ubuntu22.04"
          }
-         {
+         - {
             ros2_distro: "jazzy",
             base_image: "ubuntu:24.04",
             base_image_label: "ubuntu24.04",
@@ -100,7 +100,7 @@ jobs:
             base_image: "ubuntu:22.04",
             base_image_label: "ubuntu22.04",
          }
-         {
+         - {
             ros2_distro: "jazzy",
             base_image: "ubuntu:24.04",
             base_image_label: "ubuntu24.04",