diff --git a/ffserver.c b/ffserver.c
index f6898e5421..60f69f0c7e 100644
--- a/ffserver.c
+++ b/ffserver.c
@@ -545,7 +545,7 @@ static int http_server(void)
     struct pollfd *poll_table, *poll_entry;
     HTTPContext *c, *c_next;
 
-    if(!(poll_table = av_mallocz(nb_max_http_connections + 2))) {
+    if(!(poll_table = av_mallocz((nb_max_http_connections + 2)*sizeof(*poll_table)))) {
         http_log("Impossible to allocate a poll table handling %d connections.\n", nb_max_http_connections);
         return -1;
     }