diff --git a/train_network.py b/train_network.py
index 2eabcdf3..18343ce3 100644
--- a/train_network.py
+++ b/train_network.py
@@ -45,7 +45,11 @@ from library.custom_train_functions import (
     apply_masked_loss,
 )
 from library.utils import setup_logging, add_logging_arguments
-from wavelet_loss import WaveletLoss
+
+try:
+    from wavelet_loss import WaveletLoss
+except:
+    raise ImportError("wavelet-loss is not installed. Install it with `pip install git+https://github.com/rockerBOO/wavelet-loss`")
 
 setup_logging()
 import logging