diff --git a/dev-python/pyudev/pyudev-0.20.0.ebuild b/dev-python/pyudev/pyudev-0.20.0.ebuild
index 7151171a71aa6..0cd4b83806128 100644
--- a/dev-python/pyudev/pyudev-0.20.0.ebuild
+++ b/dev-python/pyudev/pyudev-0.20.0.ebuild
@@ -37,7 +37,7 @@ PATCHES=(
 )
 
 REQUIRED_USE="pygobject? ( || ( $(python_gen_useflags 'python2*') ) )
-	pyside? ( $(python_gen_useflags '!(python3_3)') )"
+	pyside? ( || ( $(python_gen_useflags '!(python3_3)') ) )"
 
 python_prepare_all() {
 	if use test; then