Index: security/py-pyptlib/Makefile
===================================================================
--- security/py-pyptlib/Makefile
+++ security/py-pyptlib/Makefile
@@ -15,7 +15,7 @@
 
 NO_ARCH=	yes
 
-USES=		python
+USES=		python:2.7
 USE_PYTHON=	autoplist distutils
 
 do-test: