diff --git a/hw/net/can/ctucan_core.h b/hw/net/can/ctucan_core.h
index f21cb1c5ec..bbc09ae067 100644
--- a/hw/net/can/ctucan_core.h
+++ b/hw/net/can/ctucan_core.h
@@ -31,8 +31,7 @@
 #include "exec/hwaddr.h"
 #include "net/can_emu.h"
 
-
-#ifndef __LITTLE_ENDIAN_BITFIELD
+#ifndef HOST_WORDS_BIGENDIAN
 #define __LITTLE_ENDIAN_BITFIELD 1
 #endif