diff --git a/runtests.py b/runtests.py
index 5b64f8b..b4d7996 100755
--- a/runtests.py
+++ b/runtests.py
@@ -11,7 +11,10 @@ suites = []
 
 # Yay, import hacks!
 sys.path.append(os.path.join(os.getcwd(), 'tests'))
-for testfile in glob.glob('tests/test_*.py'):
+
+query = sys.argv[1:] or glob.glob('tests/test_*.py')
+
+for testfile in query:
     # Strip the tests/ and .py extension: tests/test_whatever.py => test_whatever
     module = testfile.replace('.py', '').replace('tests/', '')
     module = __import__(module)