diff --git a/Makefile b/Makefile
index 18e1a4b5..28ac2a4e 100644
--- a/Makefile
+++ b/Makefile
@@ -81,7 +81,7 @@ configcheck:
 	(cd "$(SPHINX_DIR)"; $(MAKE) configcheck)
 
 flakecheck:
-	$(FLAKE8) "$(PROJ)"
+	$(FLAKE8) --ignore=X999 "$(PROJ)"
 
 flakediag:
 	-$(MAKE) flakecheck
diff --git a/tox.ini b/tox.ini
index 6475dec4..ebb79951 100644
--- a/tox.ini
+++ b/tox.ini
@@ -37,7 +37,7 @@ commands = pip install -U -r{toxinidir}/requirements/dev.txt
 
 [testenv:flake8]
 commands =
-    flake8 {toxinidir}/kombu
+    flake8 --ignore=X999 {toxinidir}/kombu
 
 [testenv:flakeplus]
 commands =