diff --git a/python/lxml/lxml.desc b/python/lxml/lxml.desc
index eac97f82d..69b1c499c 100644
--- a/python/lxml/lxml.desc
+++ b/python/lxml/lxml.desc
@@ -26,6 +26,8 @@
 
 [C] extra/tool
 
+[F] SETUPTOOLS
+
 [L] BSD
 [S] Stable
 [V] 2.3