diff --git a/Instruction-Set.md b/Instruction-Set.md
index e3a049e..80d800d 100644
--- a/Instruction-Set.md
+++ b/Instruction-Set.md
@@ -182,7 +182,7 @@ destination = destination | source
 ```
 
 ### SAL
-alias to [SHL](#SHL)
+alias to [SHL](#shl)
 
 ### SHL
 #### Details