diff --git a/src/out/zusi/task_function.cpp b/src/out/zusi/task_function.cpp
index 290e754..59deeb2 100644
--- a/src/out/zusi/task_function.cpp
+++ b/src/out/zusi/task_function.cpp
@@ -116,7 +116,7 @@ void transmit(std::span<uint8_t const> stack) {
 
 /// \todo document
 void loop() {
-  std::array<uint8_t, ZUSI_MAX_PACKET_SIZE> stack;
+  std::array<uint8_t, ULF_SUSIV2_MAX_FRAME_SIZE> stack;
 
   // Give decoder some time to boot...
   vTaskDelay(pdMS_TO_TICKS(1000u));