diff --git a/src/devx/ci/sync_wiki.py b/src/devx/ci/sync_wiki.py
index 347ee49..ab69ac7 100644
--- a/src/devx/ci/sync_wiki.py
+++ b/src/devx/ci/sync_wiki.py
@@ -208,7 +208,19 @@ def commit_and_push(wiki_dir: Path, wiki_url: str, dry_run: bool) -> bool:
         click.echo(_("No changes to sync — wiki is up to date."))
         return False
 
-    # Commit
+    # Commit — ensure git identity is configured (CI environments may lack it)
+    subprocess.run(  # nosec
+        ["git", "config", "user.email", "devin-ai-integration[bot]@users.noreply.github.com"],
+        cwd=wiki_dir,
+        capture_output=True,
+        check=True,
+    )
+    subprocess.run(  # nosec
+        ["git", "config", "user.name", "Devin CI"],
+        cwd=wiki_dir,
+        capture_output=True,
+        check=True,
+    )
     subprocess.run(  # nosec
         ["git", "commit", "-m", "Sync wiki from docs/ [skip ci]"],
         cwd=wiki_dir,
diff --git a/tests/unit/test_sync_wiki.py b/tests/unit/test_sync_wiki.py
index b776cec..9a6cfe1 100644
--- a/tests/unit/test_sync_wiki.py
+++ b/tests/unit/test_sync_wiki.py
@@ -208,6 +208,8 @@ class TestCommitAndPush:
         mock_run.side_effect = [
             MagicMock(returncode=0),  # git add
             MagicMock(returncode=1),  # git diff --cached --quiet (has changes)
+            MagicMock(returncode=0),  # git config user.email
+            MagicMock(returncode=0),  # git config user.name
             MagicMock(returncode=0),  # git commit
             MagicMock(returncode=0, stdout="", stderr=""),  # git push
         ]
@@ -219,6 +221,8 @@ class TestCommitAndPush:
         mock_run.side_effect = [
             MagicMock(returncode=0),  # git add
             MagicMock(returncode=1),  # git diff --cached --quiet (has changes)
+            MagicMock(returncode=0),  # git config user.email
+            MagicMock(returncode=0),  # git config user.name
             MagicMock(returncode=0),  # git commit
             MagicMock(returncode=1, stdout="", stderr="push failed"),  # git push
         ]