diff --git a/spacy/cli/ud_run_test.py b/spacy/cli/ud_run_test.py
index f22881c6c..37dad980a 100644
--- a/spacy/cli/ud_run_test.py
+++ b/spacy/cli/ud_run_test.py
@@ -20,6 +20,8 @@ from ..matcher import Matcher
 from .. import displacy
 from collections import defaultdict, Counter
 from timeit import default_timer as timer
+Fused_begin = None
+Fused_inside = None
 
 import itertools
 import random