diff --git a/15.md b/15.md
index 80ad6ca4..b1174891 100644
--- a/15.md
+++ b/15.md
@@ -1,4 +1,4 @@
-> __Warning__  `unrecommended`: too complicated, try [99](99.md) instead
+> __Warning__  `unrecommended`: too complicated, try [NIP-99](99.md) instead
 
 NIP-15
 ======