diff --git a/api/dev/check_knowledge_fs_coverage.py b/api/dev/check_knowledge_fs_coverage.py
index e101c4787d8..0b1fd775775 100644
--- a/api/dev/check_knowledge_fs_coverage.py
+++ b/api/dev/check_knowledge_fs_coverage.py
@@ -31,6 +31,7 @@ NON_CORE_COVERAGE_ALLOWLIST = frozenset(
         "api/migrations/versions/2026_07_21_1600-e5a7c9b2d416_add_knowledge_fs_cleanup_completion.py",
         "api/migrations/versions/2026_08_10_1200-7c1e9a4b2d60_add_knowledge_fs_staged_uploads.py",
         "api/migrations/versions/2026_08_13_1200-9d4e6f8a1b2c_add_knowledge_fs_space_tag_bindings.py",
+        "api/migrations/versions/2026_08_17_1200-4f8b2c7d9e10_add_knowledge_fs_icon_background.py",
     }
 )
 HUNK_HEADER = re.compile(r"^@@ -\d+(?:,\d+)? \+(\d+)(?:,\d+)? @@")
diff --git a/api/tests/unit_tests/dev/test_check_knowledge_fs_coverage.py b/api/tests/unit_tests/dev/test_check_knowledge_fs_coverage.py
index 13fd4fa52ed..8b71a3f0d2c 100644
--- a/api/tests/unit_tests/dev/test_check_knowledge_fs_coverage.py
+++ b/api/tests/unit_tests/dev/test_check_knowledge_fs_coverage.py
@@ -120,6 +120,7 @@ def test_core_coverage_rejects_unclassified_knowledge_fs_production_files(tmp_pa
         "api/migrations/versions/2026_07_21_1500-d4f6e8a1c305_add_knowledge_fs_remote_freeze_evidence.py",
         "api/migrations/versions/2026_07_21_1600-e5a7c9b2d416_add_knowledge_fs_cleanup_completion.py",
         "api/migrations/versions/2026_08_13_1200-9d4e6f8a1b2c_add_knowledge_fs_space_tag_bindings.py",
+        "api/migrations/versions/2026_08_17_1200-4f8b2c7d9e10_add_knowledge_fs_icon_background.py",
     ],
 )
 def test_core_coverage_allows_explicit_non_core_migrations(tmp_path: Path, migration: str) -> None: