diff --git a/browser/themes/shared/incontentprefs/preferences.inc.css b/browser/themes/shared/incontentprefs/preferences.inc.css
index 17ca5f9d6b79..544042a65b85 100644
--- a/browser/themes/shared/incontentprefs/preferences.inc.css
+++ b/browser/themes/shared/incontentprefs/preferences.inc.css
@@ -34,7 +34,7 @@ treecol {
 }
 
 #category-search > .category-icon {
-  -moz-image-region: rect(0, 194px, 24px, 168px);
+  -moz-image-region: rect(0, 192px, 24px, 168px);
 }
 
 #category-content > .category-icon {