diff --git a/ogip/lc.py b/ogip/lc.py
index 63259b2..1c33dbd 100644
--- a/ogip/lc.py
+++ b/ogip/lc.py
@@ -49,7 +49,7 @@ def to_long_string(self):
                     'CREATOR']
 
 
-class rate(LightCurve):
+class Rate(LightCurve):
     _time = None
     _timedel = None
     _fracexp = None