diff --git a/src/Scenery/tileentry.cxx b/src/Scenery/tileentry.cxx
index 108e6d0c8..be3026ec4 100644
--- a/src/Scenery/tileentry.cxx
+++ b/src/Scenery/tileentry.cxx
@@ -26,7 +26,7 @@
 #endif
 
 #include <simgear/compiler.h>
-
+#include <plib/ul.h>
 #include <Main/main.hxx>