diff --git a/muttrc b/muttrc
index 9ace1aa..ca43064 100644
--- a/muttrc
+++ b/muttrc
@@ -44,8 +44,8 @@ bind index \005 next-undeleted # Mouse wheel
 bind pager \031 previous-line # Mouse wheel
 bind pager \005 next-line # Mouse wheel
 macro index,pager S <sync-mailbox>
-macro index,pager \Cu "|urlscan -r 'setsid $BROWSER {}'"\n
-macro index,pager ,, "|urlscan -r 'setsid $BROWSER {}'"\n
+macro index,pager \Cu "|urlscan -r 'setsid $BROWSER \"{}\"'"\n
+macro index,pager ,, "|urlscan -r 'setsid $BROWSER \"{}\"'"\n
 
 # View attachments properly.
 bind attach <return> view-mailcap