diff --git a/src/Connection.cpp b/src/Connection.cpp
index c5488f0..7353a9c 100644
--- a/src/Connection.cpp
+++ b/src/Connection.cpp
@@ -73,7 +73,7 @@ Connection::~Connection()
 void Connection::requestName(const std::string& name)
 {
     SDBUS_CHECK_SERVICE_NAME(name);
-    
+
     auto r = iface_->sd_bus_request_name(bus_.get(), name.c_str(), 0);
     SDBUS_THROW_ERROR_IF(r < 0, "Failed to request bus name", -r);
 }
@@ -423,7 +423,7 @@ bool Connection::processPendingRequest()
 bool Connection::waitForNextRequest()
 {
     assert(bus_ != nullptr);
-    assert(eventFd_.fd != 0);
+    assert(eventFd_.fd >= 0);
 
     auto sdbusPollData = getEventLoopPollData();
     struct pollfd fds[] = {
diff --git a/src/Connection.h b/src/Connection.h
index f2b1c04..5454dae 100644
--- a/src/Connection.h
+++ b/src/Connection.h
@@ -134,7 +134,7 @@ namespace sdbus::internal {
         {
             EventFd();
             ~EventFd();
-            int fd;
+            int fd{-1};
         };
 
     private: