diff --git a/src/scripts/interpreter.ts b/src/scripts/interpreter.ts
index bc730f2..93520c5 100644
--- a/src/scripts/interpreter.ts
+++ b/src/scripts/interpreter.ts
@@ -289,11 +289,6 @@ export function step(o: ProgramState) {
     o.cursor[0] += o.cursor_direction[0];
     o.cursor[1] += o.cursor_direction[1];
 
-    const program_size = [
-        o.program.reduce((a, b) => Math.max(a, b.length), 0),
-        o.program.length
-    ]
-
-    o.cursor[1] = (o.cursor[1] + o.program.length[1]) % o.program.length[1];
+    o.cursor[1] = (o.cursor[1] + o.program.length) % o.program.length;
     o.cursor[0] = (o.cursor[0] + o.program[o.cursor[1]].length) % o.program[o.cursor[1]].length;
 }
\ No newline at end of file