diff --git a/chrome/content/zotero/update/updates.css b/chrome/content/zotero/update/updates.css
index 3311c45b4d..8a746099e0 100644
--- a/chrome/content/zotero/update/updates.css
+++ b/chrome/content/zotero/update/updates.css
@@ -1,34 +1,34 @@
 /* Hide the wizard's header so the size of the billboard can size the window
-   on creation. A custom header will be used in its place when a header is
-   needed. */
+on creation. A custom header will be used in its place when a header is
+needed. */
 .wizard-header {
-  display: none;
+	display: none;
 }
 
 /* Display the custom header */
 .update-header {
-  display: -moz-box !important;
+	display: -moz-box !important;
 }
 
 /* Custom header implementation based on the Wizard's header. This allows the
-   size of the billboard's remotecontent to size the window since it does not
-   have an updateheader on the billboard page. */
+size of the billboard's remotecontent to size the window since it does not
+have an updateheader on the billboard page. */
 updateheader {
-  -moz-binding: url("chrome://mozapps/content/update/updates.xml#updateheader");
-  display: -moz-box;
-  -moz-box-orient: horizontal;
+	-moz-binding: url("chrome://mozapps/content/update/updates.xml#updateheader");
+	display: -moz-box;
+	-moz-box-orient: horizontal;
 }
 
 #downloadProgress {
-  -moz-box-flex: 1;
+	-moz-box-flex: 1;
 }
 
 /* Update History Window */
 richlistitem.update {
-  display: -moz-box;
-  -moz-box-orient: vertical;
+	display: -moz-box;
+	-moz-box-orient: vertical;
 }
 
 .update-name {
-  -moz-box-flex: 1;
+	-moz-box-flex: 1;
 }