diff --git a/libavutil/dict.c b/libavutil/dict.c
index 0d54c7970a..85613da19e 100644
--- a/libavutil/dict.c
+++ b/libavutil/dict.c
@@ -141,6 +141,7 @@ int av_dict_set_int(AVDictionary **pm, const char *key, int64_t value,
 {
     char valuestr[22];
     snprintf(valuestr, sizeof(valuestr), "%"PRId64, value);
+    flags &= ~AV_DICT_DONT_STRDUP_VAL;
     return av_dict_set(pm, key, valuestr, flags);
 }