diff --git a/main.py b/main.py
index 4f05d9d..477fae0 100755
--- a/main.py
+++ b/main.py
@@ -16,7 +16,7 @@ while 1:
 #    ser.readline()
     Data = ser.readline().decode('ascii')
     print(Data)
-    outFile = open("arduino-fridge-powercontrol.json", "a")
+    outFile = open("arduino-fridge-powercontrol.json", "w")
     outFile.write(Data)
     outFile.close