diff --git a/runtime/spell/pt/main.aap b/runtime/spell/pt/main.aap
index 17ba24d..b2ad65b 100644
--- a/runtime/spell/pt/main.aap
+++ b/runtime/spell/pt/main.aap
@@ -1,5 +1,5 @@
 # Aap recipe for Portuguese Vim spell files.
-#
+# See ftp://ftp.vim.org/pub/vim/runtime/spell/README.txt
 
 # Use a freshly compiled Vim if it exists.
 @if os.path.exists('../../../src/vim'):