diff --git a/yubiadmin/apps/auth.py b/yubiadmin/apps/auth.py
index 41c0a8f..d4468b0 100644
--- a/yubiadmin/apps/auth.py
+++ b/yubiadmin/apps/auth.py
@@ -230,7 +230,7 @@ class ValidationServerForm(ConfigForm):
     client_id = IntegerField('Client ID', [NumberRange(0)])
     client_secret = TextField('API key')
     server_list = ListField(
-        'Validation Server URLs', [URL()],
+        'Validation Server URLs', [URL(require_tld=False)],
         description="""
         List of URLs to YubiKey validation servers.
         Example: <code>http://example.com/wsapi/2.0/verify</code>
diff --git a/yubiadmin/apps/val.py b/yubiadmin/apps/val.py
index 58a0697..a5311f0 100644
--- a/yubiadmin/apps/val.py
+++ b/yubiadmin/apps/val.py
@@ -168,7 +168,7 @@ class SyncPoolForm(ConfigForm):
     }
 
     sync_pool = ListField(
-        'Sync Pool URLs', [URL()],
+        'Sync Pool URLs', [URL(require_tld=False)],
         description="""
         List of URLs to other servers in the sync pool.
         Example: <code>http://example.com/wsapi/2.0/sync</code>
@@ -193,7 +193,7 @@ class KSMForm(ConfigForm):
     attrs = {'ksm_urls': {'rows': 5, 'class': 'input-xxlarge'}}
 
     ksm_urls = ListField(
-        'KSM URLs', [URL()],
+        'KSM URLs', [URL(require_tld=False)],
         description="""
         List of URLs to KSMs.
         The URLs must be fully qualified, i.e., contain the OTP itself.