diff --git a/libretroshare/src/retroshare/rsgxschannels.h b/libretroshare/src/retroshare/rsgxschannels.h
index c72245ad3..edd791f21 100644
--- a/libretroshare/src/retroshare/rsgxschannels.h
+++ b/libretroshare/src/retroshare/rsgxschannels.h
@@ -55,7 +55,10 @@ class RsGxsChannelGroup
 
 class RsGxsChannelPost
 {
-	public:
+public:
+	RsGxsChannelPost() : mCount(0), mSize(0) {}
+
+public:
 	RsMsgMetaData mMeta;
 	std::string mMsg;  // UTF8 encoded.