1 files changed, 1 insertions, 1 deletions
diff --git a/instructions/INY.ts b/instructions/INY.ts
index 566c6d4..7e8784d 100644
--- a/instructions/INY.ts
+++ b/instructions/INY.ts
@@ -2,7 +2,7 @@ import type The65c02 from "../65c02.ts";
 
 export default function (this: The65c02, mode: string) {
     switch (mode) {
-        case 'implied':
+        case 'implicit':
             this.regY.increment()
             this.negative = this.regY.bit(7);
             this.zero = this.regY.num() == 0;