diff --git a/THANKS b/THANKS
index 99e66ae..8a8e207 100644
--- a/THANKS
+++ b/THANKS
@@ -5,7 +5,7 @@ Jacques Distler - Template patches
 Michael Koziarski - HTTP Auth fix
 Brian Ewins     - Win32 / Portalocker
 Joe Gregorio    - Invoke same version of Python for filters
-Harry Fuecks    - Pipe characters in file names
+Harry Fuecks    - Pipe characters in file names, filter bug
 Eric van der Vlist - Filters to add language, category information
 
 This codebase represents a radical refactoring of Planet 2.0, which lists
diff --git a/planet/spider.py b/planet/spider.py
index 8fd10bd..da8253b 100644
--- a/planet/spider.py
+++ b/planet/spider.py
@@ -241,7 +241,8 @@ def spiderFeed(feed):
         xdoc.unlink()
         for filter in config.filters(feed):
             output = shell.run(filter, output, mode="filter")
-            if not output: return
+            if not output: break
+        if not output: continue
 
         # write out and timestamp the results
         write(output, cache_file)