1 files changed, 3 insertions, 2 deletions
diff --git a/sys/src/dup.c b/sys/src/dup.c
index 0943f52..5877df3 100644
--- a/sys/src/dup.c
+++ b/sys/src/dup.c
@@ -1,7 +1,8 @@
 #include "internal.h"
 
 int
-sys·dup(int fd)
+sys·dup(int oldfd, int newfd)
 {
-    return syscall(·Dup, fd);
+    intptr ret = syscall(·Dup2, oldfd, newfd);
+    return error(ret);
 }