diff --git a/dev-python/blockdiag/blockdiag-1.5.4.ebuild b/dev-python/blockdiag/blockdiag-1.5.4.ebuild
index 56d9d2ae83bb0..9a0e924379fce 100644
--- a/dev-python/blockdiag/blockdiag-1.5.4.ebuild
+++ b/dev-python/blockdiag/blockdiag-1.5.4.ebuild
@@ -2,7 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
-PYTHON_COMPAT=( python2_7 python3_{5,6,7} )
+PYTHON_COMPAT=( python2_7 python3_{5,6,7,8} )
 
 inherit distutils-r1