diff --git a/util/include/rusefi/arrays.h b/util/include/rusefi/arrays.h
index 9000675..74e27de 100644
--- a/util/include/rusefi/arrays.h
+++ b/util/include/rusefi/arrays.h
@@ -4,6 +4,7 @@
 #include <cstring>
 
 #include "scaled_channel.h"
+#include "critical_error.h"
 
 /**
  * Copies an array from src to dest.  The lengths of the arrays must match.
@@ -52,7 +53,7 @@ template <typename T>
 constexpr void clear(T* obj) {
 #ifdef WE_HAVE_CRITICAL_ERROR_METHOD
   if (obj == nullptr) {
-    criticalError("clear nullptr");
+    efiCriticalError("clear nullptr");
     return;
   }
 #endif // WE_HAVE_CRITICAL_ERROR_METHOD
diff --git a/util/include/rusefi/critical_error.h b/util/include/rusefi/critical_error.h
new file mode 100644
index 0000000..4d31948
--- /dev/null
+++ b/util/include/rusefi/critical_error.h
@@ -0,0 +1,4 @@
+#pragma once
+
+// todo: implement var arg version of this method in main firmware
+void efiCriticalError(const char *message);