diff --git a/zenmap/test/run_tests.py b/zenmap/test/run_tests.py
index 993f0bd1c..1802939c8 100644
--- a/zenmap/test/run_tests.py
+++ b/zenmap/test/run_tests.py
@@ -12,7 +12,7 @@ if __name__ == "__main__":
 
     os.chdir("..")
     suite = unittest.defaultTestLoader.discover(
-        start_dir=glob.glob("build/lib.*")[0],
+        start_dir=glob.glob("build/lib*")[0],
         pattern="*.py"
         )
     unittest.TextTestRunner().run(suite)