diff --git a/Instruction-Set.md b/Instruction-Set.md
index 728646d..107389a 100644
--- a/Instruction-Set.md
+++ b/Instruction-Set.md
@@ -59,7 +59,7 @@ The [instructions section](#instructions) is sorted numerically (on opcode).
 
 # Instruction Set
 ## Introduction
-This is an effort to specify the specific MAR Assembly Instruction Set and its behavior. The instruction set is a subset of the 8086 instruction set. A more detailed specification if the 8086 Instruction Set can be found [here](http://www.ousob.com/ng/iapx86/ng2e5.php). Note that the MAR Instruction Set can differ from the 8086 Instruction Set.
+This is an effort to specify the specific MAR Assembly Instruction Set and its behavior. The instruction set is a subset of the 8086 instruction set. A more detailed specification of the 8086 Instruction Set can be found [here](http://www.ousob.com/ng/iapx86/ng2e5.php). Note that the MAR Instruction Set can differ from the 8086 Instruction Set.
 
 This manual tries to describe how to use the instructions and show any side effects they might have.