diff --git a/libraries/app/api.cpp b/libraries/app/api.cpp
index 18b3311d..13df7dfc 100644
--- a/libraries/app/api.cpp
+++ b/libraries/app/api.cpp
@@ -62,6 +62,7 @@ namespace graphene { namespace app {
           param.projected_element_count    = 10000;
           param.false_positive_probability = 1.0/10000;
           param.maximum_size = 1024*8*8*2;
+          param.compute_optimal_parameters();
           _subscribe_filter = fc::bloom_filter(param);
        }
     }