diff --git a/libc/calls/fcntl.c b/libc/calls/fcntl.c
index d925a46ad..b53ce4014 100644
--- a/libc/calls/fcntl.c
+++ b/libc/calls/fcntl.c
@@ -28,7 +28,6 @@
 #include "libc/intrin/strace.internal.h"
 #include "libc/intrin/weaken.h"
 #include "libc/runtime/zipos.internal.h"
-#include "libc/str/str.h"
 #include "libc/sysv/consts/f.h"
 #include "libc/sysv/errfuns.h"
 
@@ -126,10 +125,6 @@ int fcntl(int fd, int cmd, ...) {
           END_CANCELATION_POINT;
         } else {
           rc = sys_fcntl(fd, cmd, arg, __sys_fcntl);
-          if (rc != -1 && (cmd == F_DUPFD || cmd == F_DUPFD_CLOEXEC) &&
-              __isfdkind(rc, kFdZip)) {
-            _weaken(__zipos_postdup)(fd, rc);
-          }
         }
       } else {
         rc = sys_fcntl_nt(fd, cmd, arg);