diff --git a/dev-python/snakeoil/snakeoil-0.6.4.ebuild b/dev-python/snakeoil/snakeoil-0.6.4.ebuild
index b5d042d869450..c4c744ace63d9 100644
--- a/dev-python/snakeoil/snakeoil-0.6.4.ebuild
+++ b/dev-python/snakeoil/snakeoil-0.6.4.ebuild
@@ -4,6 +4,7 @@
 
 EAPI=5
 PYTHON_COMPAT=( python{2_7,3_3,3_4} )
+PYTHON_REQ_USE="threads(+)"
 inherit distutils-r1
 
 if [[ ${PV} == *9999 ]] ; then
diff --git a/dev-python/snakeoil/snakeoil-0.6.5.ebuild b/dev-python/snakeoil/snakeoil-0.6.5.ebuild
index c56da0c1da39e..2a56c967574ca 100644
--- a/dev-python/snakeoil/snakeoil-0.6.5.ebuild
+++ b/dev-python/snakeoil/snakeoil-0.6.5.ebuild
@@ -4,6 +4,7 @@
 
 EAPI=5
 PYTHON_COMPAT=( python{2_7,3_3,3_4} )
+PYTHON_REQ_USE="threads(+)"
 inherit distutils-r1
 
 if [[ ${PV} == *9999 ]] ; then
diff --git a/dev-python/snakeoil/snakeoil-9999.ebuild b/dev-python/snakeoil/snakeoil-9999.ebuild
index c56da0c1da39e..2a56c967574ca 100644
--- a/dev-python/snakeoil/snakeoil-9999.ebuild
+++ b/dev-python/snakeoil/snakeoil-9999.ebuild
@@ -4,6 +4,7 @@
 
 EAPI=5
 PYTHON_COMPAT=( python{2_7,3_3,3_4} )
+PYTHON_REQ_USE="threads(+)"
 inherit distutils-r1
 
 if [[ ${PV} == *9999 ]] ; then