diff --git a/clientgui/DlgEventLog.cpp b/clientgui/DlgEventLog.cpp
index a6868adf65..4c5862fdb3 100644
--- a/clientgui/DlgEventLog.cpp
+++ b/clientgui/DlgEventLog.cpp
@@ -1,6 +1,6 @@
 // This file is part of BOINC.
 // http://boinc.berkeley.edu
-// Copyright (C) 2022 University of California
+// Copyright (C) 2023 University of California
 //
 // BOINC is free software; you can redistribute it and/or modify it
 // under the terms of the GNU Lesser General Public License
@@ -79,6 +79,7 @@ BEGIN_EVENT_TABLE( CDlgEventLog, DlgEventLogBase )
     EVT_BUTTON(wxID_OK, CDlgEventLog::OnOK)
     EVT_BUTTON(ID_COPYAll, CDlgEventLog::OnMessagesCopyAll)
     EVT_BUTTON(ID_COPYSELECTED, CDlgEventLog::OnMessagesCopySelected)
+    EVT_BUTTON(ID_TASK_MESSAGES_FILTERBYERROR, CDlgEventLog::OnErrorFilter)
     EVT_BUTTON(ID_TASK_MESSAGES_FILTERBYPROJECT, CDlgEventLog::OnMessagesFilter)
     EVT_BUTTON(ID_SIMPLE_HELP, CDlgEventLog::OnButtonHelp)
 	EVT_MENU(ID_SGDIAGNOSTICLOGFLAGS, CDlgEventLog::OnDiagnosticLogFlags)
@@ -327,6 +328,9 @@ void CDlgEventLog::CreateControls()
 
     itemFlexGridSizer2->Add(itemBoxSizer4, 0, wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL|wxALL, 12);
 
+    m_pErrorFilterButton = new wxButton(this, ID_TASK_MESSAGES_FILTERBYERROR, _("Show only aler&ts"), wxDefaultPosition, wxDefaultSize);
+    itemBoxSizer4->Add(m_pErrorFilterButton, 0, wxALIGN_CENTER_VERTICAL | wxALL, 5);
+
     m_pFilterButton = new wxButton(this, ID_TASK_MESSAGES_FILTERBYPROJECT, _("&Show only this project"),  wxDefaultPosition, wxDefaultSize);
     itemBoxSizer4->Add(m_pFilterButton, 0, wxALIGN_CENTER_VERTICAL|wxALL, 5);
 
diff --git a/clientgui/DlgEventLog.h b/clientgui/DlgEventLog.h
index 2865028bbf..3235d367a7 100644
--- a/clientgui/DlgEventLog.h
+++ b/clientgui/DlgEventLog.h
@@ -1,6 +1,6 @@
 // This file is part of BOINC.
 // http://boinc.berkeley.edu
-// Copyright (C) 2008 University of California
+// Copyright (C) 2023 University of California
 //
 // BOINC is free software; you can redistribute it and/or modify it
 // under the terms of the GNU Lesser General Public License
@@ -173,6 +173,7 @@ private:
     wxInt32                 m_iPreviousRowCount;
     wxButton*               m_pFilterButton;
     wxButton*               m_pCopySelectedButton;
+    wxButton*               m_pErrorFilterButton;
 
     wxListItemAttr*         m_pMessageInfoAttr;
     wxListItemAttr*         m_pMessageErrorAttr;
diff --git a/clientgui/Events.h b/clientgui/Events.h
index 58783cc935..647863d593 100644
--- a/clientgui/Events.h
+++ b/clientgui/Events.h
@@ -1,6 +1,6 @@
 // This file is part of BOINC.
 // http://boinc.berkeley.edu
-// Copyright (C) 2008 University of California
+// Copyright (C) 2023 University of California
 //
 // BOINC is free software; you can redistribute it and/or modify it
 // under the terms of the GNU Lesser General Public License
@@ -138,6 +138,7 @@
 #define ID_TASK_MESSAGES_COPYALL                9400
 #define ID_TASK_MESSAGES_COPYSELECTED           9401
 #define ID_TASK_MESSAGES_FILTERBYPROJECT        9402
+#define ID_TASK_MESSAGES_FILTERBYERROR          9403
 #define ID_TASK_STATISTICS_USERTOTAL            9500
 #define ID_TASK_STATISTICS_USERAVERAGE          9501
 #define ID_TASK_STATISTICS_HOSTTOTAL            9502