diff --git a/src/main.cpp b/src/main.cpp
index a15b7a0..022586c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -60,7 +60,7 @@ void onHomieEvent(const HomieEvent& event) {
       syslog.deviceHostname(Homie.getConfiguration().name);
       syslog.appName("deskcontrol");
       syslog.defaultPriority(LOG_ERR);
-      syslog.log(LOG_INFO, "WiFi Connected, software version: %s", "1.0");
+      syslog.log(LOG_INFO, "WiFi Connected, software version: 1.0");
       // You can use event.ip, event.gateway, event.mask
       break;
     case HomieEventType::WIFI_DISCONNECTED: