diff --git a/cope2n-api/fwd_api/utils/accuracy.py b/cope2n-api/fwd_api/utils/accuracy.py
index 903fcde..05811f2 100755
--- a/cope2n-api/fwd_api/utils/accuracy.py
+++ b/cope2n-api/fwd_api/utils/accuracy.py
@@ -673,7 +673,7 @@ def _accuracy_calculate_formatter(inference, target):
         target = [] if target is None else [target]
     
     length = max(len(target), len(inference))
-    target = target + (length - len(target))*[None]
+    target = target + (length - len(target))*[target[0]] if len(target) > 0 else target + (length - len(target))*[None]
     inference = inference + (length - len(inference))*[None]
 
     return inference, target