1 files changed, 1 insertions, 1 deletions
diff --git a/Lib/trace.py b/Lib/trace.py
index 2cf3643..213e465 100755
--- a/Lib/trace.py
+++ b/Lib/trace.py
@@ -172,7 +172,7 @@ class CoverageResults:
             try:
                 with open(self.infile, 'rb') as f:
                     counts, calledfuncs, callers = pickle.load(f)
-                self.update(self.__class__(counts, calledfuncs, callers))
+                self.update(self.__class__(counts, calledfuncs, callers=callers))
             except (OSError, EOFError, ValueError) as err:
                 print(("Skipping counts file %r: %s"
                                       % (self.infile, err)), file=sys.stderr)