diff --git a/libavutil/cpu.h b/libavutil/cpu.h
index 67a1abc34e9de1da2c3105308734c2578962c8ad..9c77ce6e471edab311185dc504658d6143a07078 100644
--- a/libavutil/cpu.h
+++ b/libavutil/cpu.h
@@ -28,9 +28,6 @@
     /* lower 16 bits - CPU features */
 #define AV_CPU_FLAG_MMX          0x0001 ///< standard MMX
 #define AV_CPU_FLAG_MMXEXT       0x0002 ///< SSE integer functions or AMD MMX ext
-#if FF_API_CPU_FLAG_MMX2
-#define AV_CPU_FLAG_MMX2         0x0002 ///< SSE integer functions or AMD MMX ext
-#endif
 #define AV_CPU_FLAG_3DNOW        0x0004 ///< AMD 3DNOW
 #define AV_CPU_FLAG_SSE          0x0008 ///< SSE functions
 #define AV_CPU_FLAG_SSE2         0x0010 ///< PIV SSE2 functions
diff --git a/libavutil/version.h b/libavutil/version.h
index 75a78258e7b06d9466a4ab371ba32b31215f0a0d..5d23e7ac4dc51013de76c0efefe4708aab7d3557 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -81,9 +81,6 @@
 #ifndef FF_API_CONTEXT_SIZE
 #define FF_API_CONTEXT_SIZE             (LIBAVUTIL_VERSION_MAJOR < 55)
 #endif
-#ifndef FF_API_CPU_FLAG_MMX2
-#define FF_API_CPU_FLAG_MMX2            (LIBAVUTIL_VERSION_MAJOR < 55)
-#endif
 #ifndef FF_API_LLS_PRIVATE
 #define FF_API_LLS_PRIVATE              (LIBAVUTIL_VERSION_MAJOR < 55)
 #endif