diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 3ae045af6c..3712199c4b 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2021-03-03  Markus Metzger  <markus.t.metzger@intel.com>
+
+	* gdb.btrace/unknown_functions.exp: Move -Wl,-x to ldflags.
+
 2021-03-03  Markus Metzger  <markus.t.metzger@intel.com>
 
 	* gdb.btrace/rn-dl-bind.exp: Replace reverse-step with
diff --git a/gdb/testsuite/gdb.btrace/unknown_functions.exp b/gdb/testsuite/gdb.btrace/unknown_functions.exp
index 5dfd8d1070..dc52d75c0f 100644
--- a/gdb/testsuite/gdb.btrace/unknown_functions.exp
+++ b/gdb/testsuite/gdb.btrace/unknown_functions.exp
@@ -29,7 +29,7 @@ standard_testfile
 #
 # Also discard local symbols.
 if [prepare_for_testing "failed to prepare" $testfile $srcfile \
-	{additional_flags=-Wl,-x nopie}] {
+	{ldflags=-Wl,-x nopie}] {
     return -1
 }