diff --git a/src/Umbraco.Web.UI.Client/src/less/hacks.less b/src/Umbraco.Web.UI.Client/src/less/hacks.less
index 549f65d668..ae56afde43 100644
--- a/src/Umbraco.Web.UI.Client/src/less/hacks.less
+++ b/src/Umbraco.Web.UI.Client/src/less/hacks.less
@@ -24,7 +24,8 @@
 }
 
 .thumbnail img {
-	max-width: 100% !important
+	max-width: 100% !important;
+    width: 100%;
 }
 
 #mapCanvas img {