diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 524be49270..1fc0b233e3 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -30,9 +30,6 @@
 #include "avutil.h"
 #include <sys/types.h> /* size_t */
 
-#define AV_STRINGIFY(s)         AV_TOSTRING(s)
-#define AV_TOSTRING(s) #s
-
 #define LIBAVCODEC_VERSION_INT  ((51<<16)+(50<<8)+1)
 #define LIBAVCODEC_VERSION      51.50.1
 #define LIBAVCODEC_BUILD        LIBAVCODEC_VERSION_INT