diff --git a/libavformat/rtmpproto.c b/libavformat/rtmpproto.c
index 42aacbd1b9..e23426b770 100644
--- a/libavformat/rtmpproto.c
+++ b/libavformat/rtmpproto.c
@@ -163,7 +163,7 @@ static int add_tracked_method(RTMPContext *rt, const char *name, int id)
 
     if (rt->nb_tracked_methods + 1 > rt->tracked_methods_size) {
         rt->tracked_methods_size = (rt->nb_tracked_methods + 1) * 2;
-        if ((err = av_reallocp(&rt->tracked_methods, rt->tracked_methods_size *
+        if ((err = av_reallocp_array(&rt->tracked_methods, rt->tracked_methods_size,
                                sizeof(*rt->tracked_methods))) < 0) {
             rt->nb_tracked_methods = 0;
             rt->tracked_methods_size = 0;