diff --git a/SparkleShare/Linux/UserInterface.cs b/SparkleShare/Linux/UserInterface.cs
index 38ef4072..95c508af 100644
--- a/SparkleShare/Linux/UserInterface.cs
+++ b/SparkleShare/Linux/UserInterface.cs
@@ -24,10 +24,8 @@ using Sparkles;
 
 namespace SparkleShare
 {
-
     public class UserInterface
     {
-
         public static string AssetsPath = InstallationInfo.Directory;
 
         public StatusIcon StatusIcon;
@@ -53,7 +51,8 @@ namespace SparkleShare
             application.Register (null);
             application.Activated += ApplicationActivatedDelegate;
 
-            IconTheme.Default.AppendSearchPath (Path.Combine (UserInterface.AssetsPath, "icons"));
+            if (IconTheme.Default != null)
+                IconTheme.Default.AppendSearchPath (Path.Combine (UserInterface.AssetsPath, "icons"));
 
             var label = new Label ();
             Gdk.Color color = UserInterfaceHelpers.RGBAToColor (label.StyleContext.GetColor (StateFlags.Insensitive));
diff --git a/Sparkles/Logger.cs b/Sparkles/Logger.cs
index 80c70779..be1a6245 100644
--- a/Sparkles/Logger.cs
+++ b/Sparkles/Logger.cs
@@ -22,7 +22,7 @@ namespace Sparkles {
     
     public static class Logger {
 
-        static StreamWriter log_writer = File.AppendText (Configuration.DefaultConfiguration.LogFilePath);
+        static StreamWriter log_writer = File.CreateText (Configuration.DefaultConfiguration.LogFilePath);
         static object log_writer_lock = new object ();
 
 
@@ -63,6 +63,9 @@ namespace Sparkles {
 
         public static void WriteCrashReport (Exception e)
         {
+            if (log_writer != null)
+                log_writer.Close ();
+
             string home_path = Environment.GetFolderPath (Environment.SpecialFolder.Personal);
 
             if (InstallationInfo.OperatingSystem == OS.Windows)