diff --git a/prometheus_plugin.cc b/prometheus_plugin.cc
index 036b3dc..1f10c2e 100644
--- a/prometheus_plugin.cc
+++ b/prometheus_plugin.cc
@@ -92,9 +92,6 @@ class Prometheus : public Plugin_Api
 
   int calls_active(std::vector<Call *> calls) override
   {
-    int num = calls.size();
-    std::string s = std::to_string(num);
-    this->active_calls->Add({}).Set(num);
     std::map<std::string, int> callsPerSystem;
 
     auto ret = 0;