diff --git a/src/plugins/qmldesigner/libs/designercore/projectstorage/typeannotationreader.cpp b/src/plugins/qmldesigner/libs/designercore/projectstorage/typeannotationreader.cpp
index 75df5f742f7..80623e02fd7 100644
--- a/src/plugins/qmldesigner/libs/designercore/projectstorage/typeannotationreader.cpp
+++ b/src/plugins/qmldesigner/libs/designercore/projectstorage/typeannotationreader.cpp
@@ -179,6 +179,7 @@ TypeAnnotationReader::ParserSate TypeAnnotationReader::readMetaInfoRootElement(c
 {
     if (name == typeElementName) {
         auto &annotation = m_typeAnnotations.emplace_back(m_sourceId, m_directorySourceId);
+        annotation.traits.canBeContainer = FlagIs::True;
         annotation.traits.canBeDroppedInFormEditor = FlagIs::True;
         annotation.traits.canBeDroppedInNavigator = FlagIs::True;
         annotation.traits.isMovable = FlagIs::True;
diff --git a/tests/unit/tests/unittests/projectstorage/typeannotationreader-test.cpp b/tests/unit/tests/unittests/projectstorage/typeannotationreader-test.cpp
index 2959a19799c..ead2a1fce56 100644
--- a/tests/unit/tests/unittests/projectstorage/typeannotationreader-test.cpp
+++ b/tests/unit/tests/unittests/projectstorage/typeannotationreader-test.cpp
@@ -20,6 +20,7 @@ class TypeAnnotationReader : public testing::Test
 protected:
     TypeAnnotationReader()
     {
+        traits.canBeContainer = FlagIs::True;
         traits.canBeDroppedInFormEditor = FlagIs::True;
         traits.canBeDroppedInNavigator = FlagIs::True;
         traits.isMovable = FlagIs::True;