diff --git a/example/custom/src/mainCpp.cpp b/example/custom/src/mainCpp.cpp
index d358937..ddde63b 100644
--- a/example/custom/src/mainCpp.cpp
+++ b/example/custom/src/mainCpp.cpp
@@ -3,7 +3,7 @@
 int main(void)
 {
   while (1) {
-    int x = my_sum(1, 2);
+    int x = my_sum(1, 5);
   }
   return 1;
 }