diff --git a/pywifi/_wifiutil_win.py b/pywifi/_wifiutil_win.py
index d0adb11..7187f01 100755
--- a/pywifi/_wifiutil_win.py
+++ b/pywifi/_wifiutil_win.py
@@ -296,9 +296,7 @@ def scan_results(self, obj):
 
                     network.ssid = ssid
 
-                    network.bssid = ''
-                    for k in range(6):
-                        network.bssid += "%02x:" % bsses[j].dot11Bssid[k]
+                    network.bssid = ":".join(["%02x" % bssid for bssid in bsses[j].dot11Bssid[0:6]])
 
                     network.signal = bsses[j].lRssi
                     network.freq = bsses[j].ulChCenterFrequency