diff --git a/settings/ChatAssistantSettings.cpp b/settings/ChatAssistantSettings.cpp
index bad22af..51a0ce6 100644
--- a/settings/ChatAssistantSettings.cpp
+++ b/settings/ChatAssistantSettings.cpp
@@ -47,7 +47,7 @@ ChatAssistantSettings::ChatAssistantSettings()
     chatTokensThreshold.setLabelText(Tr::tr("Chat history token limit:"));
     chatTokensThreshold.setToolTip(Tr::tr("Maximum number of tokens in chat history. When "
                                           "exceeded, oldest messages will be removed."));
-    chatTokensThreshold.setRange(1, 900000);
+    chatTokensThreshold.setRange(1, std::numeric_limits<qint64>::max());
     chatTokensThreshold.setDefaultValue(8000);
 
     linkOpenFiles.setSettingsKey(Constants::CA_LINK_OPEN_FILES);