diff --git a/src/drivers/Darwin/Fl_Darwin_System_Driver.cxx b/src/drivers/Darwin/Fl_Darwin_System_Driver.cxx
index 6f069639a..64102d9b4 100644
--- a/src/drivers/Darwin/Fl_Darwin_System_Driver.cxx
+++ b/src/drivers/Darwin/Fl_Darwin_System_Driver.cxx
@@ -37,10 +37,6 @@
 #include <sys/ucred.h>
 #include <sys/mount.h>
 #include <sys/stat.h>
-#include <ApplicationServices/ApplicationServices.h>
-
-
-extern int fl_mac_os_version;	// the version number of the running Mac OS X
 
 //const char* fl_local_alt   = "\xe2\x8c\xa5\\"; // U+2325 (option key)
 const char* fl_local_alt   = "⌥\\"; // U+2325 (option key)