diff --git a/README.rst b/README.rst
index 491e000..75fb200 100644
--- a/README.rst
+++ b/README.rst
@@ -889,7 +889,7 @@ Settings:
 :format: format string used for output. {temp} is the temperature in degrees celsius (default: ``{temp} °C``)
 :color:  (default: ``#FFFFFF``)
 :interval:  (default: ``5``)
-
+:file: file where the temperature is read from
 
 
 text
diff --git a/i3pystatus/temp.py b/i3pystatus/temp.py
index 0a62bfb..4639ccf 100644
--- a/i3pystatus/temp.py
+++ b/i3pystatus/temp.py
@@ -15,12 +15,11 @@ class Temperature(IntervalModule):
         ("format",
          "format string used for output. {temp} is the temperature in degrees celsius"),
         "color",
+        "file",
     )
     format = "{temp} °C"
     color = "#FFFFFF"
-
-    def init(self):
-        self.file = "/sys/class/thermal/thermal_zone0/temp"
+    file = "/sys/class/thermal/thermal_zone0/temp"
 
     def run(self):
         with open(self.file, "r") as f: