diff --git a/tests/mock_data/673-config.json b/tests/mock_data/673-config.json
new file mode 100644
index 0000000000..a777989ced
--- /dev/null
+++ b/tests/mock_data/673-config.json
@@ -0,0 +1,15 @@
+{
+  "sync": {
+    "trakt_to_plex": {
+      "watched_status": true,
+      "ratings": false,
+      "liked_lists": false,
+      "watchlist": false
+    },
+    "plex_to_trakt": {
+      "watched_status": true,
+      "ratings": false,
+      "collection": false
+    }
+  }
+}
\ No newline at end of file
diff --git a/tests/test_config.py b/tests/test_config.py
index fe97bab798..c66669ce85 100755
--- a/tests/test_config.py
+++ b/tests/test_config.py
@@ -1,7 +1,10 @@
 #!/usr/bin/env python3 -m pytest
 from os import environ
+from os.path import join
 
+from plextraktsync.config import Config
 from plextraktsync.factory import factory
+from plextraktsync.sync import SyncConfig
 
 
 def test_config_merge():
@@ -23,6 +26,23 @@ def test_config_merge():
     assert config["root"]["key2"] == "value2"
 
 
+def test_config_merge_real():
+    config = Config()
+    from tests.conftest import MOCK_DATA_DIR
+    config.config_file = join(MOCK_DATA_DIR, "673-config.json")
+
+    assert config["sync"]["plex_to_trakt"]["collection"] is False
+
+
+def test_sync_config():
+    config = Config()
+    from tests.conftest import MOCK_DATA_DIR
+    config.config_file = join(MOCK_DATA_DIR, "673-config.json")
+
+    sync_config = SyncConfig(config)
+    assert sync_config.plex_to_trakt["collection"] is False
+
+
 def test_config():
     config = factory.config()