diff --git a/server.py b/server.py
index dc0d322..a57b4fd 100755
--- a/server.py
+++ b/server.py
@@ -52,6 +52,9 @@ def announce():
 	except:
 		return "Unable to process JSON data.", 400
 
+	if type(server) != dict:
+		return "JSON data is not an object.", 400
+
 	if not "action" in server:
 		return "Missing action field.", 400