diff --git a/unix/common/unixcommon.h b/unix/common/unixcommon.h
index 5f5c8d6..cd90f87 100644
--- a/unix/common/unixcommon.h
+++ b/unix/common/unixcommon.h
@@ -35,5 +35,11 @@
 unsigned int setScreenLayout(int fb_width, int fb_height, const rfb::ScreenSet& layout,
                              OutputIdMap *outputIdMap);
 
+/*
+ * FIXME: This is only exposed because we still have logic in XDesktop
+ *        that we haven't integrated in setScreenLayout()
+ */
+int getPreferredScreenOutput(OutputIdMap *outputIdMap,
+                             const std::set<unsigned int>& disabledOutputs);
 
 #endif /* UNIXCOMMON_H */