diff --git a/rtgui/editorpanel.cc b/rtgui/editorpanel.cc
index 5c61e672e..e52dab5db 100644
--- a/rtgui/editorpanel.cc
+++ b/rtgui/editorpanel.cc
@@ -1980,11 +1980,12 @@ void EditorPanel::sendToExternal()
         pparams.icm.outputProfile = rtengine::procparams::ColorManagementParams::NoProfileString;
     }
 
-    if (!cached_exported_filename.empty() && pparams == cached_exported_pparams && Glib::file_test(cached_exported_filename, Glib::FILE_TEST_IS_REGULAR)) {
+    if (!cached_exported_filename.empty() && cached_exported_image == ipc->getInitialImage() && pparams == cached_exported_pparams && Glib::file_test(cached_exported_filename, Glib::FILE_TEST_IS_REGULAR)) {
         idle_sentToGimp(nullptr, nullptr, cached_exported_filename);
         return;
     }
 
+    cached_exported_image = ipc->getInitialImage();
     cached_exported_pparams = pparams;
     cached_exported_filename.clear();
     rtengine::ProcessingJob* job = rtengine::ProcessingJob::create (ipc->getInitialImage(), pparams);
diff --git a/rtgui/editorpanel.h b/rtgui/editorpanel.h
index 1e6eaaa1f..1372a2171 100644
--- a/rtgui/editorpanel.h
+++ b/rtgui/editorpanel.h
@@ -243,6 +243,7 @@ private:
     Glib::RefPtr<Gio::AppInfo> external_editor_info;
     std::unique_ptr<Gtk::AppChooserDialog> app_chooser_dialog;
 
+    rtengine::InitialImage *cached_exported_image;
     rtengine::procparams::ProcParams cached_exported_pparams;
     Glib::ustring cached_exported_filename;