diff --git a/ui/vmm-create-interface.ui b/ui/vmm-create-interface.ui
index 1ff38b464..1adf54de9 100644
--- a/ui/vmm-create-interface.ui
+++ b/ui/vmm-create-interface.ui
@@ -8,8 +8,8 @@
   </object>
   <object class="GtkAdjustment" id="adjustment2">
     <property name="upper">1024</property>
-    <property name="step_increment">1</property>
-    <property name="page_increment">10</property>
+    <property name="step_increment">0.01</property>
+    <property name="page_increment">1</property>
   </object>
   <object class="GtkAdjustment" id="adjustment3">
     <property name="upper">1024</property>
@@ -746,6 +746,8 @@
                             <property name="can_focus">True</property>
                             <property name="invisible_char">●</property>
                             <property name="adjustment">adjustment2</property>
+                            <property name="climb_rate">0.050000000000000003</property>
+                            <property name="digits">2</property>
                           </object>
                           <packing>
                             <property name="expand">True</property>
diff --git a/virtManager/createinterface.py b/virtManager/createinterface.py
index fbe73c2c5..e4165d1e9 100644
--- a/virtManager/createinterface.py
+++ b/virtManager/createinterface.py
@@ -696,7 +696,7 @@ class vmmCreateInterface(vmmGObjectUI):
     def update_bridge_desc(self):
         delay, stp = self.get_config_bridge_params()
         txt  = "STP %s" % (stp and "on" or "off")
-        txt += ", delay %d sec" % int(delay)
+        txt += ", delay %.2f sec" % float(delay)
 
         self.widget("bridge-config-label").set_text(txt)
 
@@ -997,7 +997,7 @@ class vmmCreateInterface(vmmGObjectUI):
         stp = self.widget("bridge-stp").get_active()
 
         iobj.stp = stp
-        iobj.delay = int(delay)
+        iobj.delay = float(delay)
 
         return True