diff --git a/engine/common/tests/test_regex_replace.py b/engine/common/tests/test_regex_replace.py
index a41c9a28..7477c1e5 100644
--- a/engine/common/tests/test_regex_replace.py
+++ b/engine/common/tests/test_regex_replace.py
@@ -4,4 +4,4 @@ from common.jinja_templater.filters import regex_replace
 def test_regex_replace_drop_field():
     original = "[ var='D0' metric='my_metric' labels={} value=140 ]"
     expected = "[ metric='my_metric' labels={} value=140 ]"
-    assert regex_replace(original, "var=\'[a-zA-Z0-9]+\'", "") == expected
+    assert regex_replace(original, "var='[a-zA-Z0-9]+' ", "") == expected