diff --git a/view/theme/frio/style.php b/view/theme/frio/style.php
index 76cbb97776..041f890e29 100644
--- a/view/theme/frio/style.php
+++ b/view/theme/frio/style.php
@@ -65,12 +65,13 @@ if (! $schema) {
 
 //Set some defaults - we have to do this after pulling owner settings, and we have to check for each setting
 //individually.  If we don't, we'll have problems if a user has set one, but not all options.
-$nav_bg           = (empty($nav_bg)           ? "#708fa0" :      $nav_bg);
-$nav_icon_color   = (empty($nav_icon_color)   ? "#fff"    :      $nav_icon_color);
-$link_color       = (empty($link_color)       ? "#6fdbe8" :      $link_color);
-$bgcolor          = (empty($bgcolor)          ? "#ededed" :      $bgcolor);
-$background_image = (empty($background_image) ? ''        :      $background_image);
-$modified         = (empty($modified)         ? time()    :      $modified);
+$nav_bg           = (empty($nav_bg)           ? "#708fa0"      : $nav_bg);
+$nav_icon_color   = (empty($nav_icon_color)   ? "#fff"         : $nav_icon_color);
+$link_color       = (empty($link_color)       ? "#6fdbe8"      : $link_color);
+$bgcolor          = (empty($bgcolor)          ? "#ededed"      : $bgcolor);
+// The background image can not be empty. So we use a dummy jpg if no image was set.
+$background_image = (empty($background_image) ? 'img/none.jpg' : $background_image);
+$modified         = (empty($modified)         ? time()         :$modified);
 
 $contentbg_transp = ((isset($contentbg_transp) && $contentbg_transp != "") ?  $contentbg_transp : 100);