diff --git a/src/prefs/appearance/APRView.cpp b/src/prefs/appearance/APRView.cpp
index e2fe0d9b8c..de2c8b4b8c 100644
--- a/src/prefs/appearance/APRView.cpp
+++ b/src/prefs/appearance/APRView.cpp
@@ -19,7 +19,7 @@
 #include <PortLink.h>
 #include "defs.h"
 #include "ColorWell.h"
-#include "ColorUtils.h"
+#include <ColorUtils.h>
 
 //#define DEBUG_COLORSET
 
diff --git a/src/prefs/appearance/Jamfile b/src/prefs/appearance/Jamfile
index edb98f94f0..6e8e7a083e 100644
--- a/src/prefs/appearance/Jamfile
+++ b/src/prefs/appearance/Jamfile
@@ -1,5 +1,6 @@
 SubDir OBOS_TOP src prefs appearance ;
 
+UsePrivateHeaders app ;
 AddResources Appearance : Appearance.rsrc ;
 
 Preference Appearance :