diff --git a/README.md b/README.md
index 7504e7d..298454c 100644
--- a/README.md
+++ b/README.md
@@ -9,8 +9,8 @@ Head over to the releases page and grab the latest binary. https://github.com/ad
 ### Linux
 Extract and run the binary.
 ```
-tar -xvf zec-qt-wallet-v0.4.0.tar.gz
-./zec-qt-wallet-v0.4.0/zec-qt-wallet
+tar -xvf zec-qt-wallet-v0.4.1.tar.gz
+./zec-qt-wallet-v0.4.1/zec-qt-wallet
 ```
 
 ### Windows
diff --git a/src/logger.cpp b/src/logger.cpp
index 2572922..45751f1 100644
--- a/src/logger.cpp
+++ b/src/logger.cpp
@@ -11,6 +11,9 @@ Logger::Logger(QObject *parent, QString fileName) : QObject(parent) {
 }
 
 void Logger::write(const QString &value) {
+    if (!file)
+        return;
+        
     QString text = value;// + "";
     text = QDateTime::currentDateTime().toString("dd.MM.yyyy hh:mm:ss ") + text;
     QTextStream out(file);
diff --git a/src/logger.h b/src/logger.h
index a37930d..495e1d4 100644
--- a/src/logger.h
+++ b/src/logger.h
@@ -11,7 +11,7 @@ public:
   ~Logger();
 
 private:
-  QFile *file;
+  QFile *file      = nullptr;
   bool m_showDate;
 
 signals:
diff --git a/src/version.h b/src/version.h
index e69d257..3ff6fff 100644
--- a/src/version.h
+++ b/src/version.h
@@ -1 +1 @@
-#define APP_VERSION "0.4.0"
+#define APP_VERSION "0.4.1"