diff --git a/lib/script/script.js b/lib/script/script.js
index e0c256d8..db4067db 100644
--- a/lib/script/script.js
+++ b/lib/script/script.js
@@ -301,7 +301,7 @@ Script.prototype.execute = function execute(stack, flags, tx, index, version) {
   var alt = [];
   var state = [];
   var negate = 0;
-  var op, code, data
+  var op, code, data;
   var val, v1, v2, v3;
   var num, n1, n2, n3;
   var m, n, key, sig;