diff --git a/spacy/cli/debug_data.py b/spacy/cli/debug_data.py
index d23cd3717..8eabf1f8f 100644
--- a/spacy/cli/debug_data.py
+++ b/spacy/cli/debug_data.py
@@ -12,6 +12,7 @@ from ..training import Example
 from ..training.initialize import get_sourced_components
 from ..schemas import ConfigSchemaTraining
 from ..pipeline._parser_internals import nonproj
+from ..pipeline._parser_internals.nonproj import DELIMITER
 from ..language import Language
 from ..util import registry, resolve_dot_names
 from .. import util
@@ -383,7 +384,7 @@ def debug_data(
         # rare labels in projectivized train
         rare_projectivized_labels = []
         for label in gold_train_data["deps"]:
-            if gold_train_data["deps"][label] <= DEP_LABEL_THRESHOLD and "||" in label:
+            if gold_train_data["deps"][label] <= DEP_LABEL_THRESHOLD and DELIMITER in label:
                 rare_projectivized_labels.append(
                     f"{label}: {gold_train_data['deps'][label]}"
                 )
diff --git a/spacy/pipeline/dep_parser.pyx b/spacy/pipeline/dep_parser.pyx
index 1fe29eb9b..18c9fd25a 100644
--- a/spacy/pipeline/dep_parser.pyx
+++ b/spacy/pipeline/dep_parser.pyx
@@ -9,6 +9,7 @@ from ._parser_internals.arc_eager cimport ArcEager
 from .functions import merge_subtokens
 from ..language import Language
 from ._parser_internals import nonproj
+from ._parser_internals.nonproj import DELIMITER
 from ..scorer import Scorer
 from ..training import validate_examples
 
@@ -230,8 +231,8 @@ cdef class DependencyParser(Parser):
         for move in self.move_names:
             if "-" in move:
                 label = move.split("-")[1]
-                if "||" in label:
-                    label = label.split("||")[1]
+                if DELIMITER in label:
+                    label = label.split(DELIMITER)[1]
                 labels.add(label)
         return tuple(sorted(labels))