diff --git a/service.h b/service.h
index f66076b..5b736e9 100644
--- a/service.h
+++ b/service.h
@@ -19,7 +19,7 @@
  *  59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-#include <stdbool.h>
+#define bool _Bool
 
 int MyStartService();
 int MyStopService();