diff --git a/oauth2_provider/oauth2_backends.py b/oauth2_provider/oauth2_backends.py
index 62791098c..8a1c239b5 100644
--- a/oauth2_provider/oauth2_backends.py
+++ b/oauth2_provider/oauth2_backends.py
@@ -180,6 +180,8 @@ def extract_body(self, request):
         """
         try:
             body = json.loads(request.body.decode("utf-8")).items()
+        except AttributeError:
+            body = ""
         except ValueError:
             body = ""