diff --git a/Instruction-Set.md b/Instruction-Set.md
index 7a20734..fe604a2 100644
--- a/Instruction-Set.md
+++ b/Instruction-Set.md
@@ -4,6 +4,7 @@ The [instruction table](#instruction-table-with-affected-flags) and [instruction
 ## Opcodes in use
 Current opcodes in use
 ```
+ 0
  1,  2,  3,  4,  5,  6,  7,      9, 10,
 11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,