diff --git a/ctrtool/README.md b/ctrtool/README.md
index 8eb9700..183f616 100644
--- a/ctrtool/README.md
+++ b/ctrtool/README.md
@@ -72,4 +72,4 @@ LZSS options:
 ```
 
 # Building
-See [BUILDING.md](/BUILDING.md).
\ No newline at end of file
+See [BUILDING.md](/ctrtool/BUILDING.md).
\ No newline at end of file