diff --git a/include/sys/sysmacros.h b/include/sys/sysmacros.h
index 29dcda7fa..7a4faa666 100644
--- a/include/sys/sysmacros.h
+++ b/include/sys/sysmacros.h
@@ -65,13 +65,7 @@
 #define MAXMSGLEN			256
 #define MAXNAMELEN			256
 #define MAXPATHLEN			PATH_MAX
-
-#ifdef _LP64
-#define MAXOFFSET_T			0x7fffffffffffffffl
-#else
-#define MAXOFFSET_T			0x7fffffffl
-#endif
-
+#define MAXOFFSET_T			LLONG_MAX
 #define MAXBSIZE			8192
 #define DEV_BSIZE			512
 #define DEV_BSHIFT			9 /* log2(DEV_BSIZE) */