diff --git a/libretroshare/src/gxs/rsgxsdataaccess.cc b/libretroshare/src/gxs/rsgxsdataaccess.cc
index 0b23594c2..17c61f956 100644
--- a/libretroshare/src/gxs/rsgxsdataaccess.cc
+++ b/libretroshare/src/gxs/rsgxsdataaccess.cc
@@ -1970,3 +1970,4 @@ bool RsGxsDataAccess::checkMsgFilter(
 }
 
 GxsGroupStatistic::~GxsGroupStatistic() = default;
+GxsServiceStatistic::~GxsServiceStatistic() = default;
diff --git a/libretroshare/src/retroshare/rsgxsifacetypes.h b/libretroshare/src/retroshare/rsgxsifacetypes.h
index ad4979067..038906317 100644
--- a/libretroshare/src/retroshare/rsgxsifacetypes.h
+++ b/libretroshare/src/retroshare/rsgxsifacetypes.h
@@ -230,24 +230,13 @@ struct GxsGroupStatistic : RsSerializable
 	~GxsGroupStatistic() override;
 };
 
-class GxsServiceStatistic
+struct GxsServiceStatistic : RsSerializable
 {
-public:
-	GxsServiceStatistic()
-	{
-		mNumMsgs = 0;
-		mNumGrps = 0;
-		mSizeOfMsgs = 0;
-		mSizeOfGrps = 0;
-		mNumGrpsSubscribed = 0;
-		mNumThreadMsgsNew = 0;
-		mNumThreadMsgsUnread = 0;
-		mNumChildMsgsNew = 0;
-		mNumChildMsgsUnread = 0;
-		mSizeStore = 0;
-    }
+	GxsServiceStatistic() :
+	    mNumMsgs(0), mNumGrps(0), mSizeOfMsgs(0),  mSizeOfGrps(0),
+	    mNumGrpsSubscribed(0), mNumThreadMsgsNew(0), mNumThreadMsgsUnread(0),
+	    mNumChildMsgsNew(0), mNumChildMsgsUnread(0), mSizeStore(0) {}
 
-public:
 	uint32_t mNumMsgs;
 	uint32_t mNumGrps;
 	uint32_t mSizeOfMsgs;
@@ -258,6 +247,24 @@ public:
 	uint32_t mNumChildMsgsNew;
 	uint32_t mNumChildMsgsUnread;
 	uint32_t mSizeStore;
+
+	/// @see RsSerializable
+	void serial_process( RsGenericSerializer::SerializeJob j,
+	                     RsGenericSerializer::SerializeContext& ctx ) override
+	{
+		RS_SERIAL_PROCESS(mNumMsgs);
+		RS_SERIAL_PROCESS(mNumGrps);
+		RS_SERIAL_PROCESS(mSizeOfMsgs);
+		RS_SERIAL_PROCESS(mSizeOfGrps);
+		RS_SERIAL_PROCESS(mNumGrpsSubscribed);
+		RS_SERIAL_PROCESS(mNumThreadMsgsNew);
+		RS_SERIAL_PROCESS(mNumThreadMsgsUnread);
+		RS_SERIAL_PROCESS(mNumChildMsgsNew);
+		RS_SERIAL_PROCESS(mNumChildMsgsUnread);
+		RS_SERIAL_PROCESS(mSizeStore);
+	}
+
+	~GxsServiceStatistic() override;
 };
 
 class RS_DEPRECATED RsGxsGroupUpdateMeta