diff --git a/hub/kojihub.py b/hub/kojihub.py
index bf14df40..e081f710 100644
--- a/hub/kojihub.py
+++ b/hub/kojihub.py
@@ -8417,8 +8417,10 @@ class RootExports(object):
     def restartHosts(self, priority=5, options=None):
         context.session.assertPerm('admin')
         if options is None:
-            options = {}
-        return make_task('restartHosts', [options], priority=priority)
+            args = []
+        else:
+            args = [options]
+        return make_task('restartHosts', args, priority=priority)
 
     def build(self, src, target, opts=None, priority=None, channel=None):
         """Create a build task
diff --git a/koji/tasks.py b/koji/tasks.py
index 9e793f8a..917ff871 100644
--- a/koji/tasks.py
+++ b/koji/tasks.py
@@ -531,7 +531,9 @@ class RestartHostsTask(BaseTaskHandler):
 
     Methods = ['restartHosts']
     _taskWeight = 0.1
-    def handler(self, options):
+    def handler(self, options=None):
+        if options is None:
+            options = {}
         # figure out which hosts we're restarting
         hostquery = {'enabled': True}
         if 'channel' in options: