diff --git a/content/courses/intro-to-solana/intro-to-writing-data.md b/content/courses/intro-to-solana/intro-to-writing-data.md
index 3bff43d78..4fde2db16 100644
--- a/content/courses/intro-to-solana/intro-to-writing-data.md
+++ b/content/courses/intro-to-solana/intro-to-writing-data.md
@@ -163,7 +163,7 @@ We're going to create a script to send SOL to other students.
 ### Basic scaffolding
 
 We'll start by using the same packages and `.env` file we made earlier in
-[Intro to Cryptography](/content/courses/intro-to-solana/intro-to-cryptography).
+[Intro to Cryptography](/content/courses/intro-to-solana/intro-to-cryptography.md).
 
 Create a file called `transfer.ts`: