diff --git a/defs.h b/defs.h
index 7873edbf..7fd50f47 100644
--- a/defs.h
+++ b/defs.h
@@ -813,7 +813,7 @@ typedef struct {
 } timeval32_t;
 
 extern void print_timeval32_t(const timeval32_t *);
-extern void printrusage32(struct tcb *, long);
+extern void printrusage32(struct tcb *, kernel_ureg_t);
 extern const char *sprint_timeval32(struct tcb *tcp, kernel_ureg_t);
 extern void print_timeval32(struct tcb *tcp, kernel_ureg_t);
 extern void print_timeval32_pair(struct tcb *tcp, kernel_ureg_t);
diff --git a/printrusage.c b/printrusage.c
index 09f8d453..df5b4583 100644
--- a/printrusage.c
+++ b/printrusage.c
@@ -37,7 +37,8 @@ typedef struct rusage rusage_t;
 
 #include MPERS_DEFS
 
-MPERS_PRINTER_DECL(void, printrusage, struct tcb *tcp, long addr)
+MPERS_PRINTER_DECL(void, printrusage,
+		   struct tcb *const tcp, const kernel_ureg_t addr)
 {
 	rusage_t ru;
 
@@ -74,7 +75,7 @@ MPERS_PRINTER_DECL(void, printrusage, struct tcb *tcp, long addr)
 
 #ifdef ALPHA
 void
-printrusage32(struct tcb *tcp, long addr)
+printrusage32(struct tcb *const tcp, const kernel_ureg_t addr)
 {
 	struct rusage32 {
 		timeval32_t ru_utime;		/* user time used */
diff --git a/wait.c b/wait.c
index 64bd3b7d..401cae2a 100644
--- a/wait.c
+++ b/wait.c
@@ -117,7 +117,8 @@ printstatus(int status)
 }
 
 static int
-printwaitn(struct tcb *tcp, void (*const print_rusage)(struct tcb *, long))
+printwaitn(struct tcb *const tcp,
+	   void (*const print_rusage)(struct tcb *, kernel_ureg_t))
 {
 	if (entering(tcp)) {
 		/* On Linux, kernel-side pid_t is typedef'ed to int