diff --git a/rc/bin/chdev b/rc/bin/chdev
index 9b659fe66..bf8815290 100755
--- a/rc/bin/chdev
+++ b/rc/bin/chdev
@@ -1,4 +1,5 @@
 #!/bin/rc
+rfork e
 
 fn usage {
 	echo 'usage:' $0 '[ -nr ] devmask' >[1=2]