diff --git a/website/src/footer.html b/website/src/footer.html
index 8ad9080ca..77c3a17e2 100644
--- a/website/src/footer.html
+++ b/website/src/footer.html
@@ -8,7 +8,7 @@
   #mc_embed_signup {
     clear: left;
     font: 14px Helvetica, Arial, sans-serif;
-    width: 600px;
+    width: 100%;
   }
 
   #mc_embed_signup .helper_text {