diff --git a/test/serializer/optimized-functions/2248-repro.js b/test/serializer/optimized-functions/2248-repro.js
new file mode 100644
index 000000000..2bf1954f7
--- /dev/null
+++ b/test/serializer/optimized-functions/2248-repro.js
@@ -0,0 +1,19 @@
+function fn(str, start) {
+  var size = str.length;
+  var posA = 0;
+  if (start > 0) {
+    for (; start > 0 && posA < size; start--) {
+      posA += 1 + str.charCodeAt(posA);
+    }
+    if (posA >= size) {
+      return posA;
+    }
+  }
+}
+
+if (global.__optimize) __optimize(fn);
+
+global.inspect = function() {
+  let res1 = fn("abcdef", 1);
+  return res1;
+};