diff --git a/src/Core/Entities/PlanetEntity.m b/src/Core/Entities/PlanetEntity.m
index ea816433..098b2be6 100644
--- a/src/Core/Entities/PlanetEntity.m
+++ b/src/Core/Entities/PlanetEntity.m
@@ -50,7 +50,7 @@ MA 02110-1301, USA.
 #define kUntexturedPlanetModel	@"icosahedron.dat"
 
 
-#if OOLITE_MAC_OS_X && !OOLITE_LEOPARD
+#if !OOLITE_MAC_OS_X || !OOLITE_LEOPARD
 #define NSIntegerMapKeyCallBacks	NSIntMapKeyCallBacks
 #define NSIntegerMapValueCallBacks	NSIntMapValueCallBacks
 #endif