diff --git a/include/linux/types.h b/include/linux/types.h
index 8646e03..2241364 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -16,6 +16,7 @@
 typedef __kernel_daddr_t	daddr_t;
 typedef __kernel_key_t		key_t;
 typedef __kernel_suseconds_t	suseconds_t;
+typedef _Bool			bool;
 
 #ifdef __KERNEL__
 typedef __kernel_uid32_t	uid_t;
diff --git a/include/xyzModem.h b/include/xyzModem.h
index f437bbd..9723e73 100644
--- a/include/xyzModem.h
+++ b/include/xyzModem.h
@@ -97,11 +97,6 @@
 #endif
 } connection_info_t;
 
-#ifndef	BOOL_WAS_DEFINED
-#define BOOL_WAS_DEFINED
-typedef unsigned int bool;
-#endif
-
 #define false 0
 #define true 1