diff --git a/src/Bytecode.hh b/src/Bytecode.hh
index 922bf21dc1bb1e2c8c6897d93e8251b13de062a8..dff9cba3419ea033d90e9c5dce23ca5fc3eab348 100644
--- a/src/Bytecode.hh
+++ b/src/Bytecode.hh
@@ -446,7 +446,7 @@ public:
   int
   get_lag()
   {
-    return arg2;
+    return arg3;
   };
   int
   get_col_pos()