diff --git a/examples/mqtt_arbitrary_data/mqtt_arbitrary_data.ino b/examples/mqtt_arbitrary_data/mqtt_arbitrary_data.ino
index 3f4b89e..36496cb 100644
--- a/examples/mqtt_arbitrary_data/mqtt_arbitrary_data.ino
+++ b/examples/mqtt_arbitrary_data/mqtt_arbitrary_data.ino
@@ -137,7 +137,8 @@ void loop() {
   arbPac.s.val3 = 3354;
 
   /*
-    // Alternate Union with anonymous struct
+   // Alternate Union with anonymous struct
+   // (see union declaration above)
 
      strcpy_P(arbPac.charAry, strVal);
      arbPac.val1 = -4533;