diff --git a/profiles/default/package.mask b/profiles/default/package.mask
index c72c503e8..081f27017 100644
--- a/profiles/default/package.mask
+++ b/profiles/default/package.mask
@@ -10,6 +10,7 @@ sys-process/vixie-cron
 =app-misc/glcdprocdriver-0.1.2
 =dev-python/dnspython-1.16.0
 =dev-libs/openssl-compat-1.0.2t-r1
+=dev-python/flake8-3.7.9
 
 # block with perl-core/File-Path-2.150.0
 ~virtual/perl-File-Path-2.150.0