diff --git a/libavutil/version.h b/libavutil/version.h
index 13ed433958..8b7d34940d 100644
--- a/libavutil/version.h
+++ b/libavutil/version.h
@@ -90,9 +90,6 @@
 #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