diff --git a/test/py/tests/test_trace.py b/test/py/tests/test_trace.py
index 7c5696c..f41d4cf 100644
--- a/test/py/tests/test_trace.py
+++ b/test/py/tests/test_trace.py
@@ -12,7 +12,7 @@
 TMPDIR = '/tmp/test_trace'
 
 # Decode a function-graph line
-RE_LINE = re.compile(r'.*0\.\.\.\.\. \s*([0-9.]*): func.*[|](\s*)(\S.*)?([{};])$')
+RE_LINE = re.compile(r'.*0\.\.\.\.\.? \s*([0-9.]*): func.*[|](\s*)(\S.*)?([{};])$')
 
 
 def collect_trace(cons):