diff --git a/pkgs/servers/mail/dovecot/default.nix b/pkgs/servers/mail/dovecot/default.nix
index 675e2ae7479d..cb29c9ebc896 100644
--- a/pkgs/servers/mail/dovecot/default.nix
+++ b/pkgs/servers/mail/dovecot/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = {
-    homepage = http://dovecot.org/;
+    homepage = "http://dovecot.org/";
     description = "Open source IMAP and POP3 email server written with security primarily in mind";
     maintainers = with stdenv.lib.maintainers; [viric simons];
     platforms = with stdenv.lib.platforms; linux;