diff --git a/simulator/simulator/efifeatures.h b/simulator/simulator/efifeatures.h
index 9c476d3db2..8e9c3454fd 100644
--- a/simulator/simulator/efifeatures.h
+++ b/simulator/simulator/efifeatures.h
@@ -8,6 +8,8 @@
 #ifndef EFIFEATURES_H_
 #define EFIFEATURES_H_
 
+#include "rusefi_true.h"
+
 #define EFI_ENABLE_ASSERTS TRUE
 
 #define EFI_ENABLE_MOCK_ADC TRUE