diff --git a/src/DeviceManager.cpp b/src/DeviceManager.cpp
index 7cb36fd22..0325b42ce 100644
--- a/src/DeviceManager.cpp
+++ b/src/DeviceManager.cpp
@@ -9,7 +9,22 @@
 #include "portaudio.h"
 #include "portmixer.h"
 
-#include "Audacity.h"
+#include "Audacity.h"
+// For compilers that support precompilation, includes "wx/wx.h".
+#include <wx/wxprec.h>
+
+#ifndef WX_PRECOMP
+#include <wx/choice.h>
+#include <wx/event.h>
+#include <wx/intl.h>
+#include <wx/settings.h>
+#include <wx/sizer.h>
+#include <wx/statbmp.h>
+#include <wx/tooltip.h>
+#endif
+
+#include "Project.h"
+
 #include "AudioIO.h"
 
 #include "DeviceManager.h"