diff --git a/compressor/finders.py b/compressor/finders.py
index 36edf93..7de1fa2 100644
--- a/compressor/finders.py
+++ b/compressor/finders.py
@@ -10,3 +10,6 @@ class CompressorFinder(staticfiles.finders.BaseStorageFinder):
     deployment.
     """
     storage = CompressorFileStorage
+
+    def list(self, ignore_patterns):
+        return []