diff --git a/app/src/tasks/requester_task.c b/app/src/tasks/requester_task.c
index 484b406..bb87fe0 100644
--- a/app/src/tasks/requester_task.c
+++ b/app/src/tasks/requester_task.c
@@ -62,9 +62,12 @@ void requester_task_main(void *params)
 		// Read reply message
 		uint32_t num = *(uint32_t*)buffer;
 
+		// Release buffer
+		incphub_release_msg_buffer(cli, buffer);
+
 		// Profit (send to UART to ensure it worked)
 		char strbuf[32];
-		sprintf(strbuf, "%u\r\n", num);
-		HAL_UART_Transmit(&huart2, strbuf, strlen(strbuf), 9999);
+		sprintf(strbuf, "%lu\r\n", num);
+		HAL_UART_Transmit(&huart2, (uint8_t*)strbuf, strlen(strbuf), 9999);
 	}
 }