diff --git a/discord/file.py b/discord/file.py
index 0366cee58..d1182417f 100644
--- a/discord/file.py
+++ b/discord/file.py
@@ -38,7 +38,9 @@ __all__ = (
 
 
 def _strip_spoiler(filename: str) -> Tuple[str, bool]:
-    stripped = filename.lstrip('SPOILER_')
+    stripped = filename
+    while stripped.startswith('SPOILER_'):
+        stripped = stripped[8:]  # len('SPOILER_')
     spoiler = stripped != filename
     return stripped, spoiler