diff --git a/sys/ia64/include/float.h b/sys/ia64/include/float.h
index a1a375892ff8..1379b6440ee2 100644
--- a/sys/ia64/include/float.h
+++ b/sys/ia64/include/float.h
@@ -64,14 +64,14 @@
 #define DBL_MAX		1.7976931348623157E+308
 #define DBL_MAX_10_EXP	308
 
-#define LDBL_MANT_DIG	DBL_MANT_DIG
-#define LDBL_EPSILON	DBL_EPSILON
-#define LDBL_DIG	DBL_DIG
-#define LDBL_MIN_EXP	DBL_MIN_EXP
-#define LDBL_MIN	DBL_MIN
-#define LDBL_MIN_10_EXP	DBL_MIN_10_EXP
-#define LDBL_MAX_EXP	DBL_MAX_EXP
-#define LDBL_MAX	DBL_MAX
-#define LDBL_MAX_10_EXP	DBL_MAX_10_EXP
+#define LDBL_MANT_DIG	64
+#define LDBL_EPSILON	1.0842021724855044340E-19L
+#define LDBL_DIG	18
+#define LDBL_MIN_EXP	(-16381)
+#define LDBL_MIN	3.3621031431120935063E-4932L
+#define LDBL_MIN_10_EXP	(-4931)
+#define LDBL_MAX_EXP	16384
+#define LDBL_MAX	1.1897314953572317650E+4932L
+#define LDBL_MAX_10_EXP	4932
 
 #endif	/* _MACHINE_FLOAT_H_ */