diff --git a/src/Main/model.hxx b/src/Main/model.hxx
index 8054a908b..d5b517b4c 100644
--- a/src/Main/model.hxx
+++ b/src/Main/model.hxx
@@ -20,6 +20,14 @@ SG_USING_STD(vector);
 #include <simgear/misc/props.hxx>
 #include <simgear/timing/timestamp.hxx>
 
+// Has anyone done anything *really* stupid, like making min and max macros?
+#ifdef min
+#undef min
+#endif
+#ifdef max
+#undef max
+#endif
+
 class FGAircraftModel : public FGSubsystem
 {
 public: