diff --git a/sys/src/9/port/proc.c b/sys/src/9/port/proc.c
index 3abc16080..06bdf474e 100644
--- a/sys/src/9/port/proc.c
+++ b/sys/src/9/port/proc.c
@@ -644,6 +644,7 @@ newproc(void)
 	p->nargs = 0;
 	p->setargs = 0;
 	memset(p->seg, 0, sizeof p->seg);
+	p->parentpid = 0;
 	p->noteid = pidalloc(p);
 	if(p->kstack == 0)
 		p->kstack = smalloc(KSTACK);
diff --git a/sys/src/9/port/sysproc.c b/sys/src/9/port/sysproc.c
index c4075fa1e..177c4a798 100644
--- a/sys/src/9/port/sysproc.c
+++ b/sys/src/9/port/sysproc.c
@@ -169,10 +169,8 @@ sysrfork(ulong *arg)
 	forkchild(p, up->dbgreg);
 
 	p->parent = up;
-	p->parentpid = up->pid;
-	if(flag&RFNOWAIT)
-		p->parentpid = 0;
-	else {
+	if((flag&RFNOWAIT) == 0){
+		p->parentpid = up->pid;
 		lock(&up->exl);
 		up->nchild++;
 		unlock(&up->exl);