diff --git a/include/SDL_endian.h b/include/SDL_endian.h
index 11ea6c663..c3f84317f 100644
--- a/include/SDL_endian.h
+++ b/include/SDL_endian.h
@@ -59,7 +59,7 @@ _m_prefetch(void *__P)
 #ifdef __linux__
 #include <endian.h>
 #define SDL_BYTEORDER  __BYTE_ORDER
-#elif defined(__OpenBSD__)
+#elif defined(__OpenBSD__) || defined(__DragonFly__)
 #include <endian.h>
 #define SDL_BYTEORDER  BYTE_ORDER
 #elif defined(__FreeBSD__) || defined(__NetBSD__)