diff --git a/include/ssp/ssp.h b/include/ssp/ssp.h
index 1f8bf7b69ce2..d0eb502f36f7 100644
--- a/include/ssp/ssp.h
+++ b/include/ssp/ssp.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: ssp.h,v 1.15 2023/11/10 23:03:37 christos Exp $	*/
+/*	$NetBSD: ssp.h,v 1.16 2023/11/15 03:14:16 christos Exp $	*/
 
 /*-
  * Copyright (c) 2006, 2011, 2023 The NetBSD Foundation, Inc.
@@ -58,8 +58,10 @@
 #endif
 #define __ssp_real(fun)		__ssp_real_(fun)
 
+#ifndef __ssp_inline
 #define __ssp_inline extern __inline \
     __attribute__((__always_inline__, __gnu_inline__))
+#endif
 
 #if __SSP_FORTIFY_LEVEL > 2
 # define __ssp_bos(ptr) __builtin_dynamic_object_size(ptr, 1)