diff --git a/src/x86/ffi64.c b/src/x86/ffi64.c
index 996b3b8..88d1a6f 100644
--- a/src/x86/ffi64.c
+++ b/src/x86/ffi64.c
@@ -790,7 +790,7 @@ ffi_prep_closure_loc (ffi_closure* closure,
dest = ffi_closure_unix64_sse_alt;
else
dest = ffi_closure_unix64_alt;
- ffi_tramp_set_parms (closure->ftramp, dest, closure);
+ ffi_tramp_set_parms (closure->tramp.ftramp, dest, closure);
goto out;
}
#endif