diff --git a/sys/ia64/include/cpufunc.h b/sys/ia64/include/cpufunc.h
index 55a238a567d..ca48e0b1040 100644
--- a/sys/ia64/include/cpufunc.h
+++ b/sys/ia64/include/cpufunc.h
@@ -37,15 +37,16 @@
 
 struct thread;
 
+#define	IA64_FIXED_BREAK	0x84B5D
+
 #ifdef __GNUC__
 
 static __inline void
 breakpoint(void)
 {
-	__asm __volatile("break 0x80100"); /* XXX use linux value */
+	__asm __volatile("break.m %0" :: "i"(IA64_FIXED_BREAK));
 }
 
-
 #define	HAVE_INLINE_FFS
 
 static __inline int