diff --git a/src/AudacityApp.cpp b/src/AudacityApp.cpp
index 4216f4a47..762fbedf2 100644
--- a/src/AudacityApp.cpp
+++ b/src/AudacityApp.cpp
@@ -245,7 +245,6 @@ It handles initialization and termination by subclassing wxApp.
 /// Custom events
 ////////////////////////////////////////////////////////////
 
-DEFINE_EVENT_TYPE(EVT_OPEN_AUDIO_FILE);
 wxDEFINE_EVENT(EVT_LANGUAGE_CHANGE, wxCommandEvent);
 
 #if 0
diff --git a/src/AudacityApp.h b/src/AudacityApp.h
index 0060983ba..d21604c8a 100644
--- a/src/AudacityApp.h
+++ b/src/AudacityApp.h
@@ -48,9 +48,6 @@ void QuitAudacity();
 
 extern bool gIsQuitting;
 
-// Asynchronous open
-DECLARE_EXPORTED_EVENT_TYPE(AUDACITY_DLL_API, EVT_OPEN_AUDIO_FILE, -1);
-
 class BlockFile;
 class AliasBlockFile;
 
diff --git a/src/Project.cpp b/src/Project.cpp
index d37cf6d1f..1abefc8bb 100644
--- a/src/Project.cpp
+++ b/src/Project.cpp
@@ -943,6 +943,13 @@ enum {
 };
 
 
+// PRL:  This event type definition used to be in AudacityApp.h, which created
+// a bad compilation dependency.  The event was never emitted anywhere.  I
+// preserve it and its handler here but I move it to remove the dependency.
+// Asynchronous open
+DECLARE_EXPORTED_EVENT_TYPE(AUDACITY_DLL_API, EVT_OPEN_AUDIO_FILE, -1);
+DEFINE_EVENT_TYPE(EVT_OPEN_AUDIO_FILE);
+
 BEGIN_EVENT_TABLE(AudacityProject, wxFrame)
    EVT_MENU(wxID_ANY, AudacityProject::OnMenu)
    EVT_MOUSE_EVENTS(AudacityProject::OnMouseEvent)