diff --git a/intermediate_source/reinforcement_q_learning.py b/intermediate_source/reinforcement_q_learning.py
index 7bc2ccda28f..a5ba6ada8a1 100644
--- a/intermediate_source/reinforcement_q_learning.py
+++ b/intermediate_source/reinforcement_q_learning.py
@@ -134,7 +134,7 @@ def __len__(self):
 
 
 ######################################################################
-# Now, let's define our model. But first, let quickly recap what a DQN is.
+# Now, let's define our model. But first, let's quickly recap what a DQN is.
 #
 # DQN algorithm
 # -------------