diff --git a/.github/workflows/ubuntu.yml b/.github/workflows/ubuntu.yml
index 3f26c797fc..bead9ebbdc 100644
--- a/.github/workflows/ubuntu.yml
+++ b/.github/workflows/ubuntu.yml
@@ -7,6 +7,10 @@ on:
 permissions:
   contents: read
 
+env:
+  # A workaround for long FQDN names provided by GitHub actions.
+  FQDN: "localhost"
+
 jobs:
   lint: # from lint.yml
     runs-on: ubuntu-latest
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index f7d9ca30b9..a9aac81654 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -7,6 +7,10 @@ on:
 permissions:
   contents: read
 
+env:
+  # A workaround for long FQDN names provided by GitHub actions.
+  FQDN: "localhost"
+
 jobs:
   pytest-coverage: # from pytest_coverage.yml
     runs-on: windows-latest
diff --git a/openfl/interface/cli.py b/openfl/interface/cli.py
index f6cb9ae219..3d939570ce 100755
--- a/openfl/interface/cli.py
+++ b/openfl/interface/cli.py
@@ -180,7 +180,7 @@ def cli(context, log_level, no_warnings):
         # Setup logging immediately to suppress unnecessary warnings on import
         # This will be overridden later with user selected debugging level
         disable_warnings()
-    log_file = os.path.normpath(os.getenv("LOG_FILE"))
+    log_file = str(os.path.normpath(os.getenv("LOG_FILE")))
     setup_logging(log_level, log_file)
     sys.stdout.reconfigure(encoding="utf-8")