diff --git a/integrations/nvidia/src/haystack_integrations/components/embedders/nvidia/truncate.py b/integrations/nvidia/src/haystack_integrations/components/embedders/nvidia/truncate.py
index 2c32eabb1..3a8eb9d07 100644
--- a/integrations/nvidia/src/haystack_integrations/components/embedders/nvidia/truncate.py
+++ b/integrations/nvidia/src/haystack_integrations/components/embedders/nvidia/truncate.py
@@ -6,10 +6,12 @@ class EmbeddingTruncateMode(Enum):
     Specifies how inputs to the NVIDIA embedding components are truncated.
     If START, the input will be truncated from the start.
     If END, the input will be truncated from the end.
+    If NONE, an error will be returned (if the input is too long).
     """
 
     START = "START"
     END = "END"
+    NONE = "NONE"
 
     def __str__(self):
         return self.value
diff --git a/integrations/nvidia/tests/test_embedding_truncate_mode.py b/integrations/nvidia/tests/test_embedding_truncate_mode.py
new file mode 100644
index 000000000..e74d0308c
--- /dev/null
+++ b/integrations/nvidia/tests/test_embedding_truncate_mode.py
@@ -0,0 +1,40 @@
+import pytest
+
+from haystack_integrations.components.embedders.nvidia import EmbeddingTruncateMode
+
+
+class TestEmbeddingTruncateMode:
+    @pytest.mark.parametrize(
+        "mode, expected",
+        [
+            ("START", EmbeddingTruncateMode.START),
+            ("END", EmbeddingTruncateMode.END),
+            ("NONE", EmbeddingTruncateMode.NONE),
+            (EmbeddingTruncateMode.START, EmbeddingTruncateMode.START),
+            (EmbeddingTruncateMode.END, EmbeddingTruncateMode.END),
+            (EmbeddingTruncateMode.NONE, EmbeddingTruncateMode.NONE),
+        ],
+    )
+    def test_init_with_valid_mode(self, mode, expected):
+        assert EmbeddingTruncateMode(mode) == expected
+
+    def test_init_with_invalid_mode_raises_value_error(self):
+        with pytest.raises(ValueError):
+            invalid_mode = "INVALID"
+            EmbeddingTruncateMode(invalid_mode)
+
+    @pytest.mark.parametrize(
+        "mode, expected",
+        [
+            ("START", EmbeddingTruncateMode.START),
+            ("END", EmbeddingTruncateMode.END),
+            ("NONE", EmbeddingTruncateMode.NONE),
+        ],
+    )
+    def test_from_str_with_valid_mode(self, mode, expected):
+        assert EmbeddingTruncateMode.from_str(mode) == expected
+
+    def test_from_str_with_invalid_mode_raises_value_error(self):
+        with pytest.raises(ValueError):
+            invalid_mode = "INVALID"
+            EmbeddingTruncateMode.from_str(invalid_mode)