diff --git a/winsup/testsuite/winsup.api/known_bugs.tcl b/winsup/testsuite/winsup.api/known_bugs.tcl
index e063ee6bb..4f13c90e0 100644
--- a/winsup/testsuite/winsup.api/known_bugs.tcl
+++ b/winsup/testsuite/winsup.api/known_bugs.tcl
@@ -1,4 +1,4 @@
-set xfail_list [list dup03 \
-    fcntl05 setgroups01 setuid02 \
+set xfail_list [list \
+    setgroups01 setuid02 \
     ulimit01 unlink08 \
     sample-fail sample-miscompile]