diff --git a/Gpio.cpp b/Gpio.cpp
index 1f34bf6..db790f4 100644
--- a/Gpio.cpp
+++ b/Gpio.cpp
@@ -27,7 +27,6 @@ void Gpio::isrLock()
     if(millis() < _lockedTs) return;
     _nuki->lock();
     _lockedTs = millis() + _debounceTime;
-    Log->println(F("Lock via GPIO"));;
 }
 
 void Gpio::isrUnlock()
@@ -35,7 +34,6 @@ void Gpio::isrUnlock()
     if(millis() < _lockedTs) return;
     _nuki->unlock();
     _lockedTs = millis() + _debounceTime;
-    Log->println(F("Unlock via GPIO"));;
 }
 
 void Gpio::isrUnlatch()
@@ -43,5 +41,4 @@ void Gpio::isrUnlatch()
     if(millis() < _lockedTs) return;
     _nuki->unlatch();
     _lockedTs = millis() + _debounceTime;
-    Log->println(F("Unlatch via GPIO"));;
 }
diff --git a/NukiWrapper.h b/NukiWrapper.h
index 5dbdd88..a1161d8 100644
--- a/NukiWrapper.h
+++ b/NukiWrapper.h
@@ -100,5 +100,5 @@ private:
     unsigned long _nextRssiTs = 0;
     unsigned long _lastRssi = 0;
     unsigned long _disableBleWatchdogTs = 0;
-    NukiLock::LockAction _nextLockAction = (NukiLock::LockAction)0xff;
+    volatile NukiLock::LockAction _nextLockAction = (NukiLock::LockAction)0xff;
 };