diff --git a/memory.c b/memory.c
index 394cbab10e..5e55a9019e 100644
--- a/memory.c
+++ b/memory.c
@@ -843,7 +843,7 @@ static void memory_region_destructor_rom_device(MemoryRegion *mr)
 
 static bool memory_region_wrong_endianness(MemoryRegion *mr)
 {
-#ifdef TARGET_BIG_ENDIAN
+#ifdef TARGET_WORDS_BIGENDIAN
     return mr->ops->endianness == DEVICE_LITTLE_ENDIAN;
 #else
     return mr->ops->endianness == DEVICE_BIG_ENDIAN;