diff --git a/deluge/ui/gtkui/glade/preferences_dialog.ui b/deluge/ui/gtkui/glade/preferences_dialog.ui
index 23646290e..10f468ddb 100644
--- a/deluge/ui/gtkui/glade/preferences_dialog.ui
+++ b/deluge/ui/gtkui/glade/preferences_dialog.ui
@@ -118,7 +118,7 @@
     <property name="page_increment">10</property>
   </object>
   <object class="GtkAdjustment" id="adjustment27">
-    <property name="upper">99999</property>
+    <property name="upper">999999</property>
     <property name="value">100</property>
     <property name="step_increment">1</property>
     <property name="page_increment">10</property>
diff --git a/deluge/ui/web/js/deluge-all/preferences/CachePage.js b/deluge/ui/web/js/deluge-all/preferences/CachePage.js
index 4afec2e6a..4635778af 100644
--- a/deluge/ui/web/js/deluge-all/preferences/CachePage.js
+++ b/deluge/ui/web/js/deluge-all/preferences/CachePage.js
@@ -56,7 +56,7 @@ Deluge.preferences.Cache = Ext.extend(Ext.form.FormPanel, {
             defaults: {
                 decimalPrecision: 0,
                 minValue: -1,
-                maxValue: 99999
+                maxValue: 999999
             }
         });
         om.bind('cache_size', fieldset.add({