diff --git a/modules/nixos/guests/firefly-iii/default.nix b/modules/nixos/guests/firefly-iii/default.nix
index 9204681..5e95cdb 100755
--- a/modules/nixos/guests/firefly-iii/default.nix
+++ b/modules/nixos/guests/firefly-iii/default.nix
@@ -72,9 +72,9 @@ in
                 encode gzip
 
                 php_fastcgi unix//run/phpfpm/firefly-iii.sock {
-                  env HTTP_X_FORWARDED_PROTO {http.request.header.X-Forwarded-Proto}
+                  env HTTP_X_FORWARDED_PROTO https
                   env HTTP_X_FORWARDED_HOST {http.request.header.X-Forwarded-Host}
-                  env HTTPS {http.request.header.X-Forwarded-Proto}
+                  env HTTPS on
                 }
               '';
             };