diff --git a/src/fsfw/pus/Service5EventReporting.cpp b/src/fsfw/pus/Service5EventReporting.cpp
index 3c30b8a5c..e285875ae 100644
--- a/src/fsfw/pus/Service5EventReporting.cpp
+++ b/src/fsfw/pus/Service5EventReporting.cpp
@@ -89,7 +89,7 @@ ReturnValue_t Service5EventReporting::handleRequest(uint8_t subservice) {
 // to be registered to the event manager to listen for events.
 ReturnValue_t Service5EventReporting::initialize() {
   EventManagerIF* manager = ObjectManager::instance()->get<EventManagerIF>(objects::EVENT_MANAGER);
-  if (manager == NULL) {
+  if (manager == nullptr) {
     return RETURN_FAILED;
   }
   // register Service 5 as listener for events
diff --git a/src/fsfw/pus/Service5EventReporting.h b/src/fsfw/pus/Service5EventReporting.h
index 74264130b..c1032d189 100644
--- a/src/fsfw/pus/Service5EventReporting.h
+++ b/src/fsfw/pus/Service5EventReporting.h
@@ -41,7 +41,7 @@
 class Service5EventReporting : public PusServiceBase {
  public:
   Service5EventReporting(object_id_t objectId, uint16_t apid, uint8_t serviceId,
-                         size_t maxNumberReportsPerCycle = 10, uint32_t messageQueueDepth = 10);
+                         size_t maxNumberReportsPerCycle, uint32_t messageQueueDepth);
   virtual ~Service5EventReporting();
 
   /***