diff --git a/Misc/NEWS b/Misc/NEWS
index 558366f..afee56a 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,9 @@
 Core and Builtins
 -----------------
 
+- Issue #28746: Fix the set_inheritable() file descriptor method on platforms
+  that do not have the ioctl FIOCLEX and FIONCLEX commands.
+
 - Issue #26920: Fix not getting the locale's charset upon initializing the
   interpreter, on platforms that do not have langinfo.
 
diff --git a/Python/fileutils.c b/Python/fileutils.c
index e3bfb0c..6a32c42 100644
--- a/Python/fileutils.c
+++ b/Python/fileutils.c
@@ -886,7 +886,7 @@
         return 0;
     }
 
-    res = fcntl(fd, F_SETFD, flags);
+    res = fcntl(fd, F_SETFD, new_flags);
     if (res < 0) {
         if (raise)
             PyErr_SetFromErrno(PyExc_OSError);