diff --git a/lib/compiler/passes/generate-javascript.js b/lib/compiler/passes/generate-javascript.js
index 405c852..828cb3c 100644
--- a/lib/compiler/passes/generate-javascript.js
+++ b/lib/compiler/passes/generate-javascript.js
@@ -203,7 +203,7 @@ module.exports = function(ast, options) {
       '          break;',
       '',
       '        case ' + op.WRAP + ':',             // WRAP n
-      '          stack.push(stack.splice(stack.length - bc[ip + 1]));',
+      '          stack.push(stack.splice(stack.length - bc[ip + 1], bc[ip + 1]));',
       '          ip += 2;',
       '          break;',
       '',