diff --git a/dev-python/testtools/testtools-1.8.0.ebuild b/dev-python/testtools/testtools-1.8.0.ebuild
index de905ca473d28..50bca347b3e81 100644
--- a/dev-python/testtools/testtools-1.8.0.ebuild
+++ b/dev-python/testtools/testtools-1.8.0.ebuild
@@ -4,7 +4,7 @@
 
 EAPI=5
 
-PYTHON_COMPAT=( python{2_7,3_3,3_4} pypy )
+PYTHON_COMPAT=( python{2_7,3_3,3_4} pypy pypy3 )
 
 inherit distutils-r1