diff --git a/keras/src/backend/openvino/trainer.py b/keras/src/backend/openvino/trainer.py
index ac2e64a8060c..a34f87dada81 100644
--- a/keras/src/backend/openvino/trainer.py
+++ b/keras/src/backend/openvino/trainer.py
@@ -25,7 +25,9 @@ def __init__(self):
         self.struct_outputs = None
 
     def _unpack_singleton(self, x):
-        if isinstance(x, (list, tuple)) and len(x) == 1:
+        if type(x) is list and len(x) == 1:
+            return x[0]
+        if type(x) is tuple and len(x) == 1:
             return x[0]
         return x