diff --git a/ClearURLs for uBo/compile.py b/ClearURLs for uBo/compile.py
index 2dc639f1f..ef77b8c81 100644
--- a/ClearURLs for uBo/compile.py	
+++ b/ClearURLs for uBo/compile.py	
@@ -40,6 +40,7 @@ KNOWN_BAD_FILTERS = [
     "$removeparam=/^ref_?=/",
     "$removeparam=sa,domain=google.*",
     "$removeparam=usg,domain=google.*",
+    "$removeparam=referrer",
 ]