diff --git a/decide/booth/views.py b/decide/booth/views.py
index 53eb984189..7e560d2706 100644
--- a/decide/booth/views.py
+++ b/decide/booth/views.py
@@ -16,6 +16,12 @@ def get_context_data(self, **kwargs):
 
         try:
             r = mods.get('voting', params={'id': vid})
+
+            # Casting numbers to string to manage in javascript with BigInt
+            # and avoid problems with js and big number conversion
+            for k, v in r[0]['pub_key'].items():
+                r[0]['pub_key'][k] = str(v)
+
             context['voting'] = json.dumps(r[0])
         except:
             raise Http404