diff --git a/examples/lsm303dlh_mag_compass.py b/examples/lsm303dlh_mag_compass.py
index 9927228..56f811b 100644
--- a/examples/lsm303dlh_mag_compass.py
+++ b/examples/lsm303dlh_mag_compass.py
@@ -22,5 +22,5 @@ def get_heading(_sensor):
 
 
 while True:
-    print("heading: {.2f} degrees".format(get_heading(sensor)))
+    print("heading: {:.2f} degrees".format(get_heading(sensor)))
     time.sleep(0.2)