diff --git a/code/espurna/ntp.h b/code/espurna/ntp.h
index 981b734a..658582d8 100644
--- a/code/espurna/ntp.h
+++ b/code/espurna/ntp.h
@@ -52,7 +52,7 @@ struct NtpInfo {
     time_t now;
 };
 
-BrokerDeclare(NtpBroker, void(const NtpTick, time_t, const String&));
+BrokerDeclare(NtpBroker, void(NtpTick, time_t, const String&));
 
 NtpInfo ntpInfo();
 
diff --git a/code/espurna/rpnrules.cpp b/code/espurna/rpnrules.cpp
index 758fdd8a..9bd0c0a2 100644
--- a/code/espurna/rpnrules.cpp
+++ b/code/espurna/rpnrules.cpp
@@ -897,7 +897,7 @@ void rpnSetup() {
     #endif
 
     #if NTP_SUPPORT
-        NtpBroker::Register([](const NtpTick tick, time_t timestamp, const String& datetime) {
+        NtpBroker::Register([](NtpTick tick, time_t timestamp, const String& datetime) {
             static const String tick_every_hour(F("tick1h"));
             static const String tick_every_minute(F("tick1m"));