diff --git a/sys/alpha/alpha/dec_2100_a500.c b/sys/alpha/alpha/dec_2100_a500.c
index ec34c05b1b2..bf8623c8986 100644
--- a/sys/alpha/alpha/dec_2100_a500.c
+++ b/sys/alpha/alpha/dec_2100_a500.c
@@ -51,14 +51,14 @@ static int comcnrate = CONSPEED;
 
 void dec_2100_a500_init(int);
 static void dec_2100_a500_cons_init(void);
-static void dec_2100_a500_intr_init(void );
+static void dec_2100_a500_intr_init(void);
 
 extern int siocnattach(int, int);
 extern int siogdbattach(int, int);
 extern int sccnattach(void);
 
 void
-dec_2100_a500_init(cputype)
+dec_2100_a500_init(int cputype)
 {
 	/*
 	 * See if we're a `Sable' or a `Lynx'.
@@ -140,7 +140,7 @@ dec_2100_a500_cons_init()
 
 
 void
-dec_2100_a500_intr_init(void )
+dec_2100_a500_intr_init(void)
 {
 
 	outb(SLAVE0_ICU, 0);