diff --git a/.github/workflows/ci-conan.yml b/.github/workflows/ci-conan.yml
index 837fb0e5..6668c7c5 100644
--- a/.github/workflows/ci-conan.yml
+++ b/.github/workflows/ci-conan.yml
@@ -60,7 +60,7 @@ jobs:
         #     compiler: { type: GCC, version: 10, cc: "gcc-10", cxx: "g++-10" },
         #     docker_image: conanio/gcc10
         #   }
-        build_type: [ "Release", "Debug" ],
+        build_type: [ "Release", "Debug" ]
         downcast_mode: [ "on", "auto" ]
     steps:
       - uses: actions/checkout@v2