diff --git a/tupak/sampler.py b/tupak/sampler.py
index 45e6257690a248eea01a7a2aa7c7842eb8db7246..f39ffa49268d162b250a01fbe0ae9eff2866201a 100644
--- a/tupak/sampler.py
+++ b/tupak/sampler.py
@@ -150,7 +150,7 @@ class Sampler(object):
         try:
             self.likelihood.log_likelihood_ratio()
         except TypeError:
-            raise TypeError('GravitationalWaveTransient evaluation failed. Have you definitely specified all the parameters?\n{}'.format(
+            raise TypeError('Likelihood evaluation failed. Have you definitely specified all the parameters?\n{}'.format(
                 self.likelihood.parameters))
 
     def prior_transform(self, theta):