diff --git a/training/opts.lua b/training/opts.lua
index bad932e..41be173 100644
--- a/training/opts.lua
+++ b/training/opts.lua
@@ -34,7 +34,7 @@ function M.parse(arg)
 
    ------------- Training options --------------------
    cmd:option('-nEpochs', 1000, 'Number of total epochs to run')
-   cmd:option('-epochSize', 1000, 'Number of batches per epoch')
+   cmd:option('-epochSize', 500, 'Number of batches per epoch')
    cmd:option('-testEpochSize', 0, 'Number of batches to test per epoch')
    cmd:option('-epochNumber', 1, 'Manual epoch number (useful on restarts)')
    -- GPU memory usage depends on peoplePerBatch and imagesPerPerson.