diff --git a/modoboa/static/css/viewmail.css b/modoboa/static/css/viewmail.css
index 778e8dd77..2e669648a 100644
--- a/modoboa/static/css/viewmail.css
+++ b/modoboa/static/css/viewmail.css
@@ -49,6 +49,6 @@ pre {
     margin-left: 10px;
     margin-right: 20px;
     font-weight: bold;
-    width: 6.38%;
-    padding: 2px 0;
+    width: 7.5%;
+    padding: 0 0 2px 0;
 }
\ No newline at end of file