diff --git a/css/islandora.theme.css b/css/islandora.theme.css
index e0673b8f..ad0ae79d 100644
--- a/css/islandora.theme.css
+++ b/css/islandora.theme.css
@@ -12,7 +12,6 @@
 .islandora-object-thumb img {
   max-width: 100%;
   *width: 100%;
-  border: 1px solid #ccc;
 }
 
 dl.islandora-object-thumb {