diff --git a/include/unwind.h b/include/unwind.h
index 214fb43730aa..a872c0a094ba 100644
--- a/include/unwind.h
+++ b/include/unwind.h
@@ -124,7 +124,7 @@ extern unsigned long _Unwind_GetBSP (struct _Unwind_Context *);
 
 /* Return the "canonical frame address" for the given context.
    This is used by NPTL... */
-extern unsigned long _Unwind_GetCFA (struct _Unwind_Context *);
+extern uintptr_t _Unwind_GetCFA (struct _Unwind_Context *);
 
 /* Return the base-address for data references.  */
 extern unsigned long _Unwind_GetDataRelBase (struct _Unwind_Context *);