diff --git a/doc/tutorials/reinforcement_learning/reinforcement_learning.txt b/doc/tutorials/reinforcement_learning/reinforcement_learning.txt
index 7d450b3b69..139112662b 100644
--- a/doc/tutorials/reinforcement_learning/reinforcement_learning.txt
+++ b/doc/tutorials/reinforcement_learning/reinforcement_learning.txt
@@ -314,7 +314,7 @@ auto measure = [&returns, &position, &episode](double episodeReturn)
   position = position % returns.n_elem;
   episode++;
 
-  std::cout << "Episode No.: "        << episode 
+  std::cout << "Episode No.: " << episode 
         << "; Episode Return: " << episodeReturn 
         << "; Average Return: " << arma::mean(returns) << endl;
 };