diff --git a/libavformat/cinedec.c b/libavformat/cinedec.c
index d3e3e1bc1b..5e16032999 100644
--- a/libavformat/cinedec.c
+++ b/libavformat/cinedec.c
@@ -75,7 +75,6 @@ static int set_metadata_int(AVDictionary **dict, const char *key, int value)
     if (value) {
         char buf[64];
         snprintf(buf, sizeof(buf), "%i", value);
-        buf[sizeof(buf) - 1] = 0;
         return av_dict_set(dict, key, buf, 0);
     }
     return 0;