diff --git a/code/ryzom/client/src/client_chat_manager.cpp b/code/ryzom/client/src/client_chat_manager.cpp
index bac2abf1e..141edea27 100644
--- a/code/ryzom/client/src/client_chat_manager.cpp
+++ b/code/ryzom/client/src/client_chat_manager.cpp
@@ -1204,7 +1204,7 @@ class CHandlerTell : public IActionHandler
 		ucstring s = CI18N::get("youTellPlayer");
 		strFindReplace(s, "%name", receiver);
 		strFindReplace(finalMsg, CI18N::get("youTell"), s);
-		CInterfaceManager::getInstance()->log(finalMsg);
+		CInterfaceManager::getInstance()->log(finalMsg, CChatGroup::groupTypeToString(CChatGroup::tell));
 	}
 };
 REGISTER_ACTION_HANDLER( CHandlerTell, "tell");
diff --git a/code/ryzom/client/src/interface_v3/chat_window.cpp b/code/ryzom/client/src/interface_v3/chat_window.cpp
index 7dcf13eeb..dd483030b 100644
--- a/code/ryzom/client/src/interface_v3/chat_window.cpp
+++ b/code/ryzom/client/src/interface_v3/chat_window.cpp
@@ -483,7 +483,7 @@ void CChatWindow::displayLocalPlayerTell(const ucstring &receiver, const ucstrin
 	strFindReplace(s, "%name", receiver);
 	strFindReplace(finalMsg, CI18N::get("youTell"), s);
 	displayMessage(finalMsg, prop.getRGBA(), CChatGroup::tell, 0, numBlinks);
-	CInterfaceManager::getInstance()->log(finalMsg);
+	CInterfaceManager::getInstance()->log(finalMsg, CChatGroup::groupTypeToString(CChatGroup::tell));
 }
 
 void CChatWindow::encodeColorTag(const NLMISC::CRGBA &color, ucstring &text, bool append)
diff --git a/code/ryzom/client/src/interface_v3/interface_manager.cpp b/code/ryzom/client/src/interface_v3/interface_manager.cpp
index 541cb853a..75678f7e6 100644
--- a/code/ryzom/client/src/interface_v3/interface_manager.cpp
+++ b/code/ryzom/client/src/interface_v3/interface_manager.cpp
@@ -2684,7 +2684,7 @@ bool CInterfaceManager::deletePlayerKeys (const std::string &playerFileIdent)
 }
 
 // ***************************************************************************
-void CInterfaceManager::log(const ucstring &str)
+void CInterfaceManager::log(const ucstring &str, const std::string &cat)
 {
 	if (_LogState)
 	{
@@ -2693,7 +2693,7 @@ void CInterfaceManager::log(const ucstring &str)
 		FILE *f = fopen(fileName.c_str(), "at");
 		if (f != NULL)
 		{
-			const string finalString = string(NLMISC::IDisplayer::dateToHumanString()) + " * " + str.toUtf8();
+			const string finalString = string(NLMISC::IDisplayer::dateToHumanString()) + " (" + NLMISC::toUpper(cat) + ") * " + str.toUtf8();
 			fprintf(f, "%s\n", finalString.c_str());
 		}
 		fclose(f);
diff --git a/code/ryzom/client/src/interface_v3/interface_manager.h b/code/ryzom/client/src/interface_v3/interface_manager.h
index 36bd909e3..d947f4912 100644
--- a/code/ryzom/client/src/interface_v3/interface_manager.h
+++ b/code/ryzom/client/src/interface_v3/interface_manager.h
@@ -218,7 +218,7 @@ public:
 	// Log system (all chat/tell
 	void setLogState(bool state) { _LogState = state; }
 	bool getLogState() const { return _LogState; }
-	void log(const ucstring &str);
+	void log(const ucstring &str, const std::string &cat = "");
 
 	/// Text from here and from server
 
diff --git a/code/ryzom/client/src/interface_v3/people_list.cpp b/code/ryzom/client/src/interface_v3/people_list.cpp
index 4dc451ea3..c2167358f 100644
--- a/code/ryzom/client/src/interface_v3/people_list.cpp
+++ b/code/ryzom/client/src/interface_v3/people_list.cpp
@@ -478,7 +478,7 @@ void CPeopleList::displayLocalPlayerTell(const ucstring &receiver, uint index, c
 	strFindReplace(s, "%name", receiver);
 	strFindReplace(finalMsg, CI18N::get("youTell"), s);
 	gl->addChild(getChatTextMngr().createMsgText(finalMsg, prop.getRGBA()));
-	CInterfaceManager::getInstance()->log(finalMsg);
+	CInterfaceManager::getInstance()->log(finalMsg, CChatGroup::groupTypeToString(CChatGroup::tell));
 
 	// if the group is closed, make it blink
 	if (!gc->isOpen())
@@ -946,7 +946,7 @@ class CHandlerContactEntry : public IActionHandler
 				ucstring s = CI18N::get("youTellPlayer");
 				strFindReplace(s, "%name", pWin->getFreeTellerName(str));
 				strFindReplace(final, CI18N::get("youTell"), s);
-				CInterfaceManager::getInstance()->log(final);
+				CInterfaceManager::getInstance()->log(final, CChatGroup::groupTypeToString(CChatGroup::tell));
 			}
 		}
 	}
diff --git a/code/ryzom/client/src/net_manager.cpp b/code/ryzom/client/src/net_manager.cpp
index 4b37b698a..66c4b83fc 100644
--- a/code/ryzom/client/src/net_manager.cpp
+++ b/code/ryzom/client/src/net_manager.cpp
@@ -879,7 +879,28 @@ void CInterfaceChatDisplayer::displayChat(TDataSetIndex compressedSenderIndex, c
 	}
 
 	// Log
-	pIM->log (finalString);
+
+	string channel;
+	if (mode == CChatGroup::dyn_chat)
+	{
+		sint32	dbIndex = ChatMngr.getDynamicChannelDbIndexFromId(dynChatId);
+		clamp(dbIndex, (sint32)0 , (sint32)CChatGroup::MaxDynChanPerPlayer);
+
+		channel = "dyn" + toString(dbIndex);
+	}
+	else
+	{
+		channel = CChatGroup::groupTypeToString(mode);
+		if (channel.empty())
+		{
+			channel = "#" + toString((uint32)mode);
+		}
+	}
+	if (!stringCategory.empty() && NLMISC::toUpper(stringCategory) != "SYS")
+	{
+		channel = channel + "/" + stringCategory;
+	}
+	pIM->log (finalString, channel);
 
 }
 
@@ -911,7 +932,7 @@ void CInterfaceChatDisplayer::displayTell(/*TDataSetIndex senderIndex, */const u
  	colorizeSender(finalString, senderPart, prop.getRGBA());
 
 	PeopleInterraction.ChatInput.Tell.displayTellMessage(/*senderIndex, */finalString, goodSenderName, prop.getRGBA(), 2, &windowVisible);
-	CInterfaceManager::getInstance()->log(finalString);
+	CInterfaceManager::getInstance()->log(finalString, CChatGroup::groupTypeToString(CChatGroup::tell));
 
 	// Open the free teller window
 	CChatGroupWindow *pCGW = PeopleInterraction.getChatGroupWindow();