diff --git a/tupak/core/likelihood.py b/tupak/core/likelihood.py
index 1070843f08cb02f9d29cd9f59b8a3c6a31c45b55..98a716bb4430dcb47160c5653dadb31c7f5d8c7f 100644
--- a/tupak/core/likelihood.py
+++ b/tupak/core/likelihood.py
@@ -15,7 +15,7 @@ class Likelihood(object):
         """
         self.parameters = parameters
 
-    def log_likelihood(self, *args, **kwargs):
+    def log_likelihood(self):
         """
 
         Returns