diff --git a/.flake8 b/.flake8
index 8bf2b3efd..9e03acc42 100644
--- a/.flake8
+++ b/.flake8
@@ -17,6 +17,8 @@ exclude = .*,__pycache__,resources.py
 #       (for pytest's __tracebackhide__)
 # F401: Unused import
 # N802: function name should be lowercase
+# N808: type variable names should use CapWords convention
+#       (doesn't allow _T as name)
 # N818: exception name '...' should be named with an Error suffix
 # N806: variable in function should be lowercase
 # P101: format string does contain unindexed parameters
@@ -49,7 +51,7 @@ ignore =
     B001,B008,B305,
     E128,E226,E265,E501,E402,E266,E722,E731,
     F401,
-    N802,N818,
+    N802,N808,N818,
     P101,P102,P103,
     D102,D103,D106,D107,D104,D105,D209,D211,D401,D402,D403,D412,D413,
     A003,