diff --git a/server/site_linux_router.py b/server/site_linux_router.py
index 4ae719f..7cb930b 100644
--- a/server/site_linux_router.py
+++ b/server/site_linux_router.py
@@ -163,7 +163,7 @@
             if k == 'ssid':
                 conf['ssid'] = v
             elif k == 'ssid_suffix':
-                conf['ssid'] = self.defssid + v
+                conf['ssid'] = self.defssid[:(32-len(v))] + v
             elif k == 'channel':
                 freq = int(v)
                 self.hostapd['frequency'] = freq