diff --git a/common/lib/capa/capa/responsetypes.py b/common/lib/capa/capa/responsetypes.py
index d9216f06d6..7f1ff32f67 100644
--- a/common/lib/capa/capa/responsetypes.py
+++ b/common/lib/capa/capa/responsetypes.py
@@ -408,7 +408,7 @@ class JavascriptResponse(LoncapaResponse):
         output = self.call_node([generator_file,
                                  self.generator, 
                                  json.dumps(self.generator_dependencies),
-                                 json.dumps(self.context['random'].getrandbits(9)), 
+                                 json.dumps(str(self.context['the_lcp'].seed)),
                                  json.dumps(self.params)]).strip()
 
         return json.loads(output)