diff --git a/tests/hp/p_adaptivity_absolute_threshold.cc b/tests/hp/p_adaptivity_absolute_threshold.cc
index 5f109cbf51b1..1af9ce882bd9 100644
--- a/tests/hp/p_adaptivity_absolute_threshold.cc
+++ b/tests/hp/p_adaptivity_absolute_threshold.cc
@@ -1,4 +1,4 @@
-// ---------------------------------------------------------------------
+// ------------------------------------------------------------------------
 //
 // SPDX-License-Identifier: LGPL-2.1-or-later
 // Copyright (C) 2019 - 2022 by the deal.II authors
diff --git a/tests/hp/p_adaptivity_fixed_number.cc b/tests/hp/p_adaptivity_fixed_number.cc
index b16823a4e13b..f9e42eb5248c 100644
--- a/tests/hp/p_adaptivity_fixed_number.cc
+++ b/tests/hp/p_adaptivity_fixed_number.cc
@@ -1,4 +1,4 @@
-// ---------------------------------------------------------------------
+// ------------------------------------------------------------------------
 //
 // SPDX-License-Identifier: LGPL-2.1-or-later
 // Copyright (C) 2019 - 2022 by the deal.II authors
diff --git a/tests/hp/p_adaptivity_full.cc b/tests/hp/p_adaptivity_full.cc
index d30f34ecb926..d538c5ef2d62 100644
--- a/tests/hp/p_adaptivity_full.cc
+++ b/tests/hp/p_adaptivity_full.cc
@@ -1,4 +1,4 @@
-// ---------------------------------------------------------------------
+// ------------------------------------------------------------------------
 //
 // SPDX-License-Identifier: LGPL-2.1-or-later
 // Copyright (C) 2019 - 2022 by the deal.II authors
diff --git a/tests/hp/p_adaptivity_reference.cc b/tests/hp/p_adaptivity_reference.cc
index 6684d223c2a5..c67a657a6e59 100644
--- a/tests/hp/p_adaptivity_reference.cc
+++ b/tests/hp/p_adaptivity_reference.cc
@@ -1,4 +1,4 @@
-// ---------------------------------------------------------------------
+// ------------------------------------------------------------------------
 //
 // SPDX-License-Identifier: LGPL-2.1-or-later
 // Copyright (C) 2019 - 2022 by the deal.II authors
diff --git a/tests/hp/p_adaptivity_regularity.cc b/tests/hp/p_adaptivity_regularity.cc
index d704cad76e7d..f9a3f2c787a6 100644
--- a/tests/hp/p_adaptivity_regularity.cc
+++ b/tests/hp/p_adaptivity_regularity.cc
@@ -1,4 +1,4 @@
-// ---------------------------------------------------------------------
+// ------------------------------------------------------------------------
 //
 // SPDX-License-Identifier: LGPL-2.1-or-later
 // Copyright (C) 2019 - 2022 by the deal.II authors
diff --git a/tests/hp/p_adaptivity_relative_threshold.cc b/tests/hp/p_adaptivity_relative_threshold.cc
index acca8835489d..97e107b5e730 100644
--- a/tests/hp/p_adaptivity_relative_threshold.cc
+++ b/tests/hp/p_adaptivity_relative_threshold.cc
@@ -1,4 +1,4 @@
-// ---------------------------------------------------------------------
+// ------------------------------------------------------------------------
 //
 // SPDX-License-Identifier: LGPL-2.1-or-later
 // Copyright (C) 2019 - 2022 by the deal.II authors
diff --git a/tests/mpi/p_adaptivity_fixed_number.cc b/tests/mpi/p_adaptivity_fixed_number.cc
index 767eb5cfa984..6eb1153528e9 100644
--- a/tests/mpi/p_adaptivity_fixed_number.cc
+++ b/tests/mpi/p_adaptivity_fixed_number.cc
@@ -1,4 +1,4 @@
-// ---------------------------------------------------------------------
+// ------------------------------------------------------------------------
 //
 // SPDX-License-Identifier: LGPL-2.1-or-later
 // Copyright (C) 2019 - 2022 by the deal.II authors