diff --git a/sys/arch/alpha/include/intr.h b/sys/arch/alpha/include/intr.h
index 4e5b296e0c30..b44c9b01f779 100644
--- a/sys/arch/alpha/include/intr.h
+++ b/sys/arch/alpha/include/intr.h
@@ -1,4 +1,4 @@
-/* $NetBSD: intr.h,v 1.8 1997/06/05 17:31:16 cgd Exp $ */
+/* $NetBSD: intr.h,v 1.9 1997/06/05 17:36:26 cgd Exp $ */
 
 /*
  * Copyright (c) 1997 Christopher G. Demetriou.  All rights reserved.
@@ -54,12 +54,13 @@
 #define splsoftnet()            splsoft()
 
 /* IPL-raising functions/macros */
+static __inline int _splraise __P((int));
 static __inline int
 _splraise(s)
 	int s;
 {
 	int cur = alpha_pal_rdps() & ALPHA_PSL_IPL_MASK;
-	return (a > cur ? alpha_pal_swpipl(a) : cur);
+	return (s > cur ? alpha_pal_swpipl(s) : cur);
 }
 #define splnet()                _splraise(ALPHA_PSL_IPL_IO)
 #define splbio()                _splraise(ALPHA_PSL_IPL_IO)