diff --git a/src/AudacityApp.cpp b/src/AudacityApp.cpp
index 21a7508ef..63a40c7bb 100644
--- a/src/AudacityApp.cpp
+++ b/src/AudacityApp.cpp
@@ -241,6 +241,8 @@ It handles initialization and termination by subclassing wxApp.
 /// Custom events
 ////////////////////////////////////////////////////////////
 
+wxDEFINE_EVENT( EVT_CLIPBOARD_CHANGE, wxCommandEvent);
+
 DEFINE_EVENT_TYPE(EVT_OPEN_AUDIO_FILE);
 wxDEFINE_EVENT(EVT_LANGUAGE_CHANGE, wxCommandEvent);
 
diff --git a/src/AudacityApp.h b/src/AudacityApp.h
index 4809c8c0b..8f651304e 100644
--- a/src/AudacityApp.h
+++ b/src/AudacityApp.h
@@ -50,6 +50,11 @@ void QuitAudacity();
 
 extern bool gIsQuitting;
 
+// An event emitted by the application whenever the global clipboard's
+// contents change.
+wxDECLARE_EXPORTED_EVENT( AUDACITY_DLL_API,
+                          EVT_CLIPBOARD_CHANGE, wxCommandEvent);
+
 // Asynchronous open
 DECLARE_EXPORTED_EVENT_TYPE(AUDACITY_DLL_API, EVT_OPEN_AUDIO_FILE, -1);
 
diff --git a/src/Project.cpp b/src/Project.cpp
index 14429d661..fb7c9beac 100644
--- a/src/Project.cpp
+++ b/src/Project.cpp
@@ -5232,6 +5232,7 @@ void AudacityProject::EditClipboardByLabel( EditDestFunction action )
 
    // Survived possibility of exceptions.  Commit changes to the clipboard now.
    newClipboard.Swap(*msClipboard);
+   wxTheApp->AddPendingEvent( wxCommandEvent{ EVT_CLIPBOARD_CHANGE } );
 
    msClipT0 = regions.front().start;
    msClipT1 = regions.back().end;
diff --git a/src/menus/EditMenus.cpp b/src/menus/EditMenus.cpp
index b011b2923..14461ee13 100644
--- a/src/menus/EditMenus.cpp
+++ b/src/menus/EditMenus.cpp
@@ -1,4 +1,5 @@
 #include "../AdornedRulerPanel.h"
+#include "../AudacityApp.h" // for EVT_CLIPBOARD_CHANGE
 #include "../HistoryWindow.h"
 #include "../LabelTrack.h"
 #include "../Menus.h"
@@ -335,6 +336,7 @@ void OnCut(const CommandContext &context)
 
    // Survived possibility of exceptions.  Commit changes to the clipboard now.
    newClipboard.Swap(*AudacityProject::msClipboard);
+   wxTheApp->AddPendingEvent( wxCommandEvent{ EVT_CLIPBOARD_CHANGE } );
 
    // Proceed to change the project.  If this throws, the project will be
    // rolled back by the top level handler.
@@ -414,6 +416,7 @@ void OnCopy(const CommandContext &context)
 
    // Survived possibility of exceptions.  Commit changes to the clipboard now.
    newClipboard.Swap(*AudacityProject::msClipboard);
+   wxTheApp->AddPendingEvent( wxCommandEvent{ EVT_CLIPBOARD_CHANGE } );
 
    AudacityProject::msClipT0 = selectedRegion.t0();
    AudacityProject::msClipT1 = selectedRegion.t1();
@@ -754,6 +757,7 @@ void OnSplitCut(const CommandContext &context)
 
    // Survived possibility of exceptions.  Commit changes to the clipboard now.
    newClipboard.Swap(*AudacityProject::msClipboard);
+   wxTheApp->AddPendingEvent( wxCommandEvent{ EVT_CLIPBOARD_CHANGE } );
 
    AudacityProject::msClipT0 = selectedRegion.t0();
    AudacityProject::msClipT1 = selectedRegion.t1();