diff --git a/dev-python/flask-principal/flask-principal-0.4.0-r1.ebuild b/dev-python/flask-principal/flask-principal-0.4.0-r1.ebuild
index fd41908021733..095499b84520e 100644
--- a/dev-python/flask-principal/flask-principal-0.4.0-r1.ebuild
+++ b/dev-python/flask-principal/flask-principal-0.4.0-r1.ebuild
@@ -2,7 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=6
-PYTHON_COMPAT=( python2_7 python3_{4,5} pypy )
+PYTHON_COMPAT=( python2_7 python3_{4,5,6} pypy )
 
 inherit distutils-r1