diff --git a/docs/source/lightning_module.rst b/docs/source/lightning_module.rst
index a4e9dbe183..dfa8977299 100644
--- a/docs/source/lightning_module.rst
+++ b/docs/source/lightning_module.rst
@@ -448,7 +448,7 @@ The matching pseudocode is:
         optimizer.step()
         optimizer.zero_grad()
 
-    epoch_out = training_epoch_end(outs)
+    training_epoch_end(outs)
 
 Training with DataParallel
 ^^^^^^^^^^^^^^^^^^^^^^^^^^