diff --git a/Makefile b/Makefile
index c575ac5c2..52f45b3e9 100644
--- a/Makefile
+++ b/Makefile
@@ -157,7 +157,7 @@ endif
 
 
 pyflakes:
-	$(PYTHON) -OOu `which pyflakes` src/allmydata static misc/build_helpers bin/tahoe-script.template |sort |uniq
+	$(PYTHON) -OOu `which pyflakes` src/allmydata static misc/build_helpers bin/tahoe-script.template twisted setup.py |sort |uniq
 check-umids:
 	$(PYTHON) misc/coding_tools/check-umids.py `find src/allmydata -name '*.py'`
 
diff --git a/setup.py b/setup.py
index 786858e36..cd20d9d90 100644
--- a/setup.py
+++ b/setup.py
@@ -9,7 +9,7 @@
 #
 # See the docs/about.html file for licensing information.
 
-import glob, os, shutil, stat, subprocess, sys, zipfile, re
+import glob, os, stat, subprocess, sys, re
 
 ##### sys.path management