diff --git a/shinysdr/i/db.py b/shinysdr/i/db.py
index dced2696..21f364f1 100644
--- a/shinysdr/i/db.py
+++ b/shinysdr/i/db.py
@@ -227,7 +227,7 @@ def render_GET(self, request):
         return json.dumps(self.__record).encode('utf-8')
     
     def render_POST(self, request):
-        assert request.getHeader(b'Content-Type') == b'application/json; charset=utf-8'
+        assert request.getHeader(b'Content-Type') in (b'application/json', b'application/json; charset=utf-8')
         if not self.__database.writable:
             request.setResponseCode(http.FORBIDDEN)
             request.setHeader(b'Content-Type', b'text/plain')
diff --git a/shinysdr/i/test_db.py b/shinysdr/i/test_db.py
index a536ac51..a2b2264e 100644
--- a/shinysdr/i/test_db.py
+++ b/shinysdr/i/test_db.py
@@ -290,7 +290,7 @@ def test_index_common(self):
     @defer.inlineCallbacks
     def test_index_response(self):
         response, data = yield http_get(reactor, self.__url('/'))
-        self.assertEqual(response.headers.getRawHeaders('Content-Type'), ['application/json'])
+        self.assertEqual(response.headers.getRawHeaders('Content-Type'), ['application/json; charset=utf-8'])
         j = json.loads(data)
         self.assertEqual(j, self.response_json)
 
@@ -300,7 +300,7 @@ def test_record_common(self):
     @defer.inlineCallbacks
     def test_record_response(self):
         response, data = yield http_get(reactor, self.__url('/1'))
-        self.assertEqual(response.headers.getRawHeaders('Content-Type'), ['application/json'])
+        self.assertEqual(response.headers.getRawHeaders('Content-Type'), ['application/json; charset=utf-8'])
         j = json.loads(data)
         self.assertEqual(j, self.test_records[1])
 
diff --git a/shinysdr/testutil.py b/shinysdr/testutil.py
index 9ab50b91..9b6ef28b 100644
--- a/shinysdr/testutil.py
+++ b/shinysdr/testutil.py
@@ -505,7 +505,7 @@ def _assert_http_response_properties(test_case, response, data):
     
     if data is not None:  # not a HEAD request
         content_type = response.headers.getRawHeaders(b'Content-Type')[0]
-        if content_type == 'application/json':
+        if content_type in ('application/json', 'application/json; charset=utf-8'):
             json.loads(data)  # raises error if it doesn't parse
         elif content_type.startswith('text/html'):
             test_case.assertRegex(content_type, r'(?i)text/html;\s*charset=utf-8')