diff --git a/src/transformers/pipelines/token_classification.py b/src/transformers/pipelines/token_classification.py
index a32a9aa9ad8b..42c5d927079c 100644
--- a/src/transformers/pipelines/token_classification.py
+++ b/src/transformers/pipelines/token_classification.py
@@ -503,7 +503,7 @@ def group_sub_entities(self, entities: List[dict]) -> dict:
             entities (`dict`): The entities predicted by the pipeline.
         """
         # Get the first entity in the entity group
-        entity = entities[0]["entity"].split("-")[-1]
+        entity = entities[0]["entity"].split("-", 1)[-1]
         scores = np.nanmean([entity["score"] for entity in entities])
         tokens = [entity["word"] for entity in entities]