diff --git a/ACE/ace/config-macosx.h b/ACE/ace/config-macosx.h
index 6a7e6b6d34f13..4b108204953f7 100644
--- a/ACE/ace/config-macosx.h
+++ b/ACE/ace/config-macosx.h
@@ -12,24 +12,24 @@
 #include "config-macosx-elcapitan.h"
 #elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 101000
 #include "config-macosx-yosemite.h"
-#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 100900
+#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 1090
 #include "config-macosx-mavericks.h"
-#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 100800
+#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 1080
 #include "config-macosx-mountainlion.h"
-#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 100700
+#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
 #include "config-macosx-lion.h"
-#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 100600
+#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
 #include "config-macosx-snowleopard.h"
-#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 100500
+#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 1050
 #include "config-macosx-leopard.h"
-#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 100400
+#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 1040
 #include "config-macosx-tiger.h"
-#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 100300
+#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 1030
 #include "config-macosx-panther.h"
-#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 100200
+#elif __MAC_OS_X_VERSION_MAX_ALLOWED >= 1020
 #include "config-macosx-jaguar.h"
 #else
-#error Cannot detect MacOSX version
+#error Cannot detect MacOSX SDK version
 #endif
 
 #endif // ACE_CONFIG_MACOSX_ALL_H