diff --git a/commands/ps/ps.c b/commands/ps/ps.c
index 72b397a48..3be292482 100644
--- a/commands/ps/ps.c
+++ b/commands/ps/ps.c
@@ -344,8 +344,8 @@ char *argv[];
   if (ps_proc == NULL || ps_mproc == NULL || ps_fproc == NULL)
 	err("Out of memory");
 
-	if(getsysinfo(PM_PROC_NR, SI_KPROC_TAB, ps_proc) < 0) {
-		fprintf(stderr, "getsysinfo() for SI_KPROC_TAB failed.\n");
+	if(minix_getkproctab(ps_proc, nr_tasks + nr_procs, 1) < 0) {
+		fprintf(stderr, "minix_getkproctab failed.\n");
 		exit(1);
 	}
 
diff --git a/commands/top/top.c b/commands/top/top.c
index f63d3bf68..fa19dc665 100644
--- a/commands/top/top.c
+++ b/commands/top/top.c
@@ -358,10 +358,11 @@ void showtop(int r)
 #endif
 
 retry:
-	if(getsysinfo(PM_PROC_NR, SI_KPROC_TAB, proc) < 0) {
-		fprintf(stderr, "getsysinfo() for SI_KPROC_TAB failed.\n");
+	if(minix_getkproctab(proc, PROCS, 1) < 0) {
+		fprintf(stderr, "minix_getkproctab failed.\n");
 		exit(1);
 	}
+
 	if (!preheated) {
 		preheated = 1;
 		memcpy(prev_proc, proc, sizeof(prev_proc));