diff --git a/testing/tests/regression-suite/809-Spec-UNLOCK-1.test b/testing/tests/regression-suite/809-Spec-UNLOCK-1.test
index c8297f8a..0817ac22 100644
--- a/testing/tests/regression-suite/809-Spec-UNLOCK-1.test
+++ b/testing/tests/regression-suite/809-Spec-UNLOCK-1.test
@@ -10,6 +10,7 @@ SELECT opaquelocktoken FROM locks WHERE dav_name = '/user1/home/i1278618276.ics'
 ENDSQL
 
 HEADER=Lock-Token: <opaquelocktoken:##locktoken##>
+HEADER=Content-type: text/xml; charset="utf-8"
 HEAD
 
 # There is no data for an UNLOCK request
diff --git a/testing/tests/regression-suite/816-Spec-UNLOCK-1.test b/testing/tests/regression-suite/816-Spec-UNLOCK-1.test
index 2047e5e0..d844197f 100644
--- a/testing/tests/regression-suite/816-Spec-UNLOCK-1.test
+++ b/testing/tests/regression-suite/816-Spec-UNLOCK-1.test
@@ -10,6 +10,7 @@ SELECT opaquelocktoken FROM locks WHERE dav_name = '/user1/home/'
 ENDSQL
 
 HEADER=Lock-Token: <opaquelocktoken:##locktoken##>
+HEADER=Content-type: text/xml; charset="utf-8"
 HEAD
 
 # There is no data for an UNLOCK request