diff --git a/modules/parent-join/src/test/resources/rest-api-spec/test/11_parent_child.yml b/modules/parent-join/src/test/resources/rest-api-spec/test/11_parent_child.yml
index d82e0bb75e360..50f4d55750df5 100644
--- a/modules/parent-join/src/test/resources/rest-api-spec/test/11_parent_child.yml
+++ b/modules/parent-join/src/test/resources/rest-api-spec/test/11_parent_child.yml
@@ -3,8 +3,6 @@ setup:
       indices.create:
         index: test
         body:
-            settings:
-              mapping.single_type: true
             mappings:
               doc:
                 properties:
diff --git a/modules/parent-join/src/test/resources/rest-api-spec/test/20_parent_join.yml b/modules/parent-join/src/test/resources/rest-api-spec/test/20_parent_join.yml
index 4e461ce546465..bc894497130b8 100644
--- a/modules/parent-join/src/test/resources/rest-api-spec/test/20_parent_join.yml
+++ b/modules/parent-join/src/test/resources/rest-api-spec/test/20_parent_join.yml
@@ -3,8 +3,6 @@ setup:
       indices.create:
         index: test
         body:
-          settings:
-            mapping.single_type: true
           mappings:
             doc:
               properties:
diff --git a/modules/parent-join/src/test/resources/rest-api-spec/test/10_parent_child.yml b/qa/mixed-cluster/src/test/resources/rest-api-spec/test/10_parent_child.yml
similarity index 95%
rename from modules/parent-join/src/test/resources/rest-api-spec/test/10_parent_child.yml
rename to qa/mixed-cluster/src/test/resources/rest-api-spec/test/10_parent_child.yml
index 29a50c64f2811..fb0462acd1a6b 100644
--- a/modules/parent-join/src/test/resources/rest-api-spec/test/10_parent_child.yml
+++ b/qa/mixed-cluster/src/test/resources/rest-api-spec/test/10_parent_child.yml
@@ -3,8 +3,6 @@ setup:
       indices.create:
         index: test
         body:
-            settings:
-              mapping.single_type: false
             mappings:
               type_2: {}
               type_3: