diff --git a/.github/ci/packages.apt b/.github/ci/packages.apt
index f9908b5f4..ce21ee2b1 100644
--- a/.github/ci/packages.apt
+++ b/.github/ci/packages.apt
@@ -11,5 +11,4 @@ libignition-utils1-dev
 libswscale-dev
 libtinyxml2-dev
 pkg-config
-ruby-ronn
 uuid-dev
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index da0b5b6f2..124a1f014 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,3 +14,13 @@ jobs:
         uses: ignition-tooling/action-ignition-ci@focal
         with:
           codecov-enabled: true
+  jammy-ci:
+    runs-on: ubuntu-latest
+    name: Ubuntu Jammy CI
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+      - name: Compile and test
+        id: ci
+        uses: ignition-tooling/action-ignition-ci@jammy
+
diff --git a/include/ignition/common/Filesystem.hh b/include/ignition/common/Filesystem.hh
index af835d52f..6948a2df0 100644
--- a/include/ignition/common/Filesystem.hh
+++ b/include/ignition/common/Filesystem.hh
@@ -246,7 +246,7 @@ namespace ignition
     /// files, by appending numbers to it (i.e. (0), (1), ...)
     /// \param[in] _pathAndName Full absolute path and file name up to the
     /// file extension.
-    /// \param[in] _extension File extension, such as "ddf".
+    /// \param[in] _extension File extension, such as "sdf".
     /// \return Full path with name and extension, which doesn't collide with
     /// existing files
     std::string IGNITION_COMMON_VISIBLE uniqueFilePath(