diff --git a/src/basic_memory/cli/commands/cloud/rclone_commands.py b/src/basic_memory/cli/commands/cloud/rclone_commands.py
index 432d2043..c5671662 100644
--- a/src/basic_memory/cli/commands/cloud/rclone_commands.py
+++ b/src/basic_memory/cli/commands/cloud/rclone_commands.py
@@ -28,11 +28,13 @@ console = Console()
 MIN_RCLONE_VERSION_EMPTY_DIRS = (1, 64, 0)
 
 # Tigris edge caching returns stale data for users outside the origin region (iad).
-# These headers bypass edge cache and force reads/writes against the origin.
+# --header is rclone's global flag that applies to ALL HTTP transactions (list, download,
+# upload). This is critical because bisync starts with S3 ListObjectsV2, which is neither
+# a download nor upload — so --header-download/--header-upload would miss list requests.
 # See: https://www.tigrisdata.com/docs/objects/consistency/
 TIGRIS_CONSISTENCY_HEADERS = [
-    "--header-download", "X-Tigris-Consistent: true",
-    "--header-upload", "X-Tigris-Consistent: true",
+    "--header",
+    "X-Tigris-Consistent: true",
 ]
 
 
diff --git a/tests/test_rclone_commands.py b/tests/test_rclone_commands.py
index f07bbe25..401471b4 100644
--- a/tests/test_rclone_commands.py
+++ b/tests/test_rclone_commands.py
@@ -41,15 +41,14 @@ class _Runner:
 
 
 def _assert_has_consistency_headers(cmd: list[str]) -> None:
-    """Assert the rclone command includes Tigris consistency headers."""
-    assert "--header-download" in cmd
-    assert "X-Tigris-Consistent: true" in cmd
-    assert "--header-upload" in cmd
-    # Verify upload header value follows --header-upload
-    upload_idx = cmd.index("--header-upload")
-    assert cmd[upload_idx + 1] == "X-Tigris-Consistent: true"
-    download_idx = cmd.index("--header-download")
-    assert cmd[download_idx + 1] == "X-Tigris-Consistent: true"
+    """Assert the rclone command includes Tigris consistency headers.
+
+    Uses --header (global flag) so the header applies to ALL HTTP transactions,
+    including S3 list requests that bisync issues before any download/upload.
+    """
+    assert "--header" in cmd
+    header_idx = cmd.index("--header")
+    assert cmd[header_idx + 1] == "X-Tigris-Consistent: true"
 
 
 def _write_filter_file(tmp_path: Path) -> Path: