diff --git a/libqpdf/QPDF_json.cc b/libqpdf/QPDF_json.cc
index c08f86d..e4a61f9 100644
--- a/libqpdf/QPDF_json.cc
+++ b/libqpdf/QPDF_json.cc
@@ -884,7 +884,7 @@ QPDF::writeJSON(
             } else {
                 jw << "\n      },\n      \"" << key;
             }
-            if (auto stream = obj.as_stream()) {
+            if (Stream stream = obj) {
                 jw << "\": {\n        \"stream\": ";
                 if (json_stream_data == qpdf_sj_file) {
                     writeJSONStreamFile(
diff --git a/libqpdf/QPDF_objects.cc b/libqpdf/QPDF_objects.cc
index 7a0726e..8d399f3 100644
--- a/libqpdf/QPDF_objects.cc
+++ b/libqpdf/QPDF_objects.cc
@@ -1634,7 +1634,7 @@ Objects::resolveObjectsInStream(int obj_stream_number)
     }
     m->resolved_object_streams.insert(obj_stream_number);
     // Force resolution of object stream
-    auto obj_stream = qpdf.getObject(obj_stream_number, 0).as_stream();
+    Stream obj_stream = qpdf.getObject(obj_stream_number, 0);
     if (!obj_stream) {
         throw qpdf.damagedPDF(
             "object " + std::to_string(obj_stream_number) + " 0",