diff --git a/external.conf b/external.conf
index 3892e04..ead1c78 100644
--- a/external.conf
+++ b/external.conf
@@ -347,6 +347,7 @@ location /out/minfoapi.matkahuolto.fi/ {
   proxy_pass    https://minfoapi.matkahuolto.fi/;
   include allowed-ips.conf;
   proxy_set_header Authorization MH_BASIC_AUTH;
+  proxy_set_header Host minfoapi.matkahuolto.fi;
   proxy_read_timeout 15000ms;
 }