diff --git a/styles/prosilver/theme/mchat.css b/styles/prosilver/theme/mchat.css
index 3326ccb..1150233 100644
--- a/styles/prosilver/theme/mchat.css
+++ b/styles/prosilver/theme/mchat.css
@@ -145,6 +145,7 @@
 
 .mchat-avatar {
 	float: left;
+    width: 40px;
 	padding-right: 5px;
 }