diff --git a/AUTHORS b/AUTHORS
index 1216b48d95..dc7932661d 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -17,6 +17,7 @@ Colin Plumb
 David Porter <david@porter.me>
 Dax Booysen <dax@younow.com>
 Danail Kirov <dkirovbroadsoft@gmail.com>
+Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
 Dmitry Lizin <sdkdimon@gmail.com>
 Eric Rescorla, RTFM Inc. <ekr@rtfm.com>
 Frederik Riedel, Frogg GmbH <frederik.riedel@frogg.io>
diff --git a/stats/rtcstatsreport.cc b/stats/rtcstatsreport.cc
index a62a97a36d..82db8f60d0 100644
--- a/stats/rtcstatsreport.cc
+++ b/stats/rtcstatsreport.cc
@@ -127,6 +127,7 @@ std::string RTCStatsReport::ToJson() const {
   const char* separator = "";
   for (ConstIterator it = begin(); it != end(); ++it) {
     sb << separator << it->ToJson();
+    separator = ",";
   }
   sb << "]";
   return sb.Release();