diff --git a/mp3lib/dct36_3dnow.c b/mp3lib/dct36_3dnow.c
index 02d23975b4..7f39caacea 100644
--- a/mp3lib/dct36_3dnow.c
+++ b/mp3lib/dct36_3dnow.c
@@ -29,6 +29,7 @@
 
 #define real float /* ugly - but only way */
 
+#include "config.h"
 #include "mangle.h"
 
 #ifdef DCT36_OPTIMIZE_FOR_K7
diff --git a/mp3lib/dct64_mmx.c b/mp3lib/dct64_mmx.c
index 4cce96bd7d..5dec11cb97 100644
--- a/mp3lib/dct64_mmx.c
+++ b/mp3lib/dct64_mmx.c
@@ -3,6 +3,7 @@
 * See ChangeLog of mpg123-0.59s-pre.1 for detail
 * Applied to mplayer by Nick Kurshev <nickols_k@mail.ru>
 */
+#include "config.h"
 #include "mangle.h"
 #define real float /* ugly - but only way */