diff --git a/src/org/april/hebdobot/model/stats/ReviewDatasFile.java b/src/org/april/hebdobot/model/stats/ReviewDatasFile.java
index 263a0da..8c20df1 100644
--- a/src/org/april/hebdobot/model/stats/ReviewDatasFile.java
+++ b/src/org/april/hebdobot/model/stats/ReviewDatasFile.java
@@ -65,12 +65,15 @@ public class ReviewDatasFile
     {
         try
         {
-            String line = String.format("%s\t%d\t%d", stat.getDate().format(DateTimeFormatter.ofPattern("yyyyMMdd-hh'h'mm")), stat.getUserCount(),
-                    stat.getDuration());
+            if ((file != null) && (file.exists()))
+            {
+                String line = String.format("%s\t%d\t%d", stat.getDate().format(DateTimeFormatter.ofPattern("yyyyMMdd-hh'h'mm")), stat.getUserCount(),
+                        stat.getDuration());
 
-            StringList lines = StringsUtils.load(file);
-            lines.add(line);
-            StringsUtils.save(file, lines);
+                StringList lines = StringsUtils.load(file);
+                lines.add(line);
+                StringsUtils.save(file, lines);
+            }
         }
         catch (FileNotFoundException exception)
         {