diff --git a/ESP32-IDF_FreeRTOS/I2C_MultiDevice/main/hello_world_main.c b/ESP32-IDF_FreeRTOS/I2C_MultiDevice/main/hello_world_main.c
index 43ad4ed5b..2f32c07fe 100644
--- a/ESP32-IDF_FreeRTOS/I2C_MultiDevice/main/hello_world_main.c
+++ b/ESP32-IDF_FreeRTOS/I2C_MultiDevice/main/hello_world_main.c
@@ -104,8 +104,8 @@ void task1(void *pvParameters) {
     while (1) {
         if (xSemaphoreTake(xMutex, 1500)) {
             printf("Task 1 is running\n");
-            s_data.num1 = x;
-            xQueueSend(xQueue1, &s_data, 0);
+            task1_data.num1 = x;
+            xQueueSend(xQueue1, &task1_data, 0);
             printf("Task 1 sent x=%" PRIu32 "\n", x);
             x+=2;
             vTaskDelay((500));