diff --git a/speech_model.py b/speech_model.py
index d28d735..ebd3a53 100644
--- a/speech_model.py
+++ b/speech_model.py
@@ -103,7 +103,7 @@ def train_siamese(audio_group = 'audio',resume_weights='',initial_epoch=0):
 
     cp_cb = ModelCheckpoint(
         cp_file_fmt,
-        monitor='val_loss',
+        monitor='acc',
         verbose=0,
         save_best_only=True,
         save_weights_only=True,