diff --git a/.github/actions/setup-dependencies/action.yml b/.github/actions/setup-dependencies/action.yml
index e60c65e9533..88a16cef5cd 100644
--- a/.github/actions/setup-dependencies/action.yml
+++ b/.github/actions/setup-dependencies/action.yml
@@ -113,7 +113,7 @@ runs:
       run: |
         wget -O C:\Windows\System32\run-matlab-command.exe https://ssd.mathworks.com/supportfiles/ci/run-matlab-command/v2/win64/run-matlab-command.exe
         echo "MATLAB_COMMAND=C:\Windows\System32\run-matlab-command.exe" >> $env:GITHUB_ENV
-        echo "%MATLAB_HOME%\bin" >> $env:GITHUB_PATH
+        echo "${env:MATLAB_HOME}\bin" >> $env:GITHUB_PATH
       shell: powershell
       if: matrix.language == 'matlab' && runner.os == 'Windows'
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 4be3b212948..99ac6bffc6d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -87,4 +87,4 @@ jobs:
           # See:
           # - https://github.com/zeroc-ice/ice/issues/1653
           # - https://github.com/zeroc-ice/ice/issues/1745
-          flags: "--rfilter IceGrid/replication --rfilter csharp/IceSSL/configuration ${{ matrix.test_flags }}"
+          flags: "--rfilter IceGrid/replication --rfilter csharp/IceSSL/configuration --rfilter matlab/Ice/slicing ${{ matrix.test_flags }}"
diff --git a/scripts/Util.py b/scripts/Util.py
index b282386af4e..72039e9b2b6 100644
--- a/scripts/Util.py
+++ b/scripts/Util.py
@@ -4296,7 +4296,7 @@ class Config(CppBasedClientMapping.Config):
         mappingDesc = "MATLAB"
 
     def getCommandLine(self, current, process, exe, args):
-        # The MATLAB_CMD environment variable can be used to specify the MATLAB command
+        # The MATLAB_COMMAND environment variable can be used to specify the MATLAB command
         # This is currently used for GitHub Actions to specify the path to a custom MATLAB executable
         # which is required to run the tests and does not need any additional arguments.
         matlabCmd = os.getenv("MATLAB_COMMAND")