diff --git a/ffmpeg.c b/ffmpeg.c
index e884274..27adacc 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -55,7 +55,7 @@
 #endif
 #endif
 
-#if (LIBAVUTIL_VERSION_INT < ((51<<16)+(5<<8)+0))
+#ifndef AV_DICT_IGNORE_SUFFIX
 #define AV_DICT_IGNORE_SUFFIX AV_METADATA_IGNORE_SUFFIX
 #define av_dict_get av_metadata_get
 #define AVDictionaryEntry AVMetadataTag