diff --git a/src/fast_file_encryption/encryptor.py b/src/fast_file_encryption/encryptor.py
index 1a21cc1..08c656e 100644
--- a/src/fast_file_encryption/encryptor.py
+++ b/src/fast_file_encryption/encryptor.py
@@ -364,7 +364,7 @@ def _add_source_metadata(source: Path, meta: Dict[str, Any]) -> Dict[str, Any]:
         if 'file_size' not in meta:
             meta['file_size'] = source.stat().st_size
         if 'created' not in meta:
-            meta['created'] = datetime.utcfromtimestamp(source.stat().st_birthtime).isoformat()
+            meta['created'] = datetime.utcfromtimestamp(source.stat().st_ctime).isoformat()
         if 'modified' not in meta:
             meta['modified'] = datetime.utcfromtimestamp(source.stat().st_mtime).isoformat()
         return meta