diff --git a/unit-tests/unit b/unit-tests/unit
index 3b06c04..28d6b02 100755
--- a/unit-tests/unit
+++ b/unit-tests/unit
@@ -9,7 +9,7 @@ from getopt import getopt
 
 # Setup temporary sys.path() with our build dir
 (sysname, nodename, release, version, machine) = os.uname()
-pyver = sys.version[:3]
+pyver = '%i.%i' % sys.version_info[:2]
 sys.path.insert(0,'../build/lib.%s-%s-%s' % (sysname.lower(), machine, pyver))
 
 root_user = (os.getuid() == 0 and True or False)