diff --git a/src/main.rs b/src/main.rs
index a0bf053..14b49cb 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -191,11 +191,11 @@ fn instruct(statement: Pair<Rule>, state: &mut State, out: &mut Builder) {
         }
         Rule::loopBlockStart => {
             println!("Start of loopBlock");
-            out.append("loopBlockStart\n");
+            out.append("[");
         }
         Rule::loopBlockEnd => {
             println!("End of loopBlock");
-            out.append("loopBlockEnd\n");
+            out.append("]");
         }
         Rule::EOI => {
             println!("End of Input");