1 files changed, 1 insertions, 1 deletions
diff --git a/test/test_api.py b/test/test_api.py
index 83f82f12..a832c035 100644
--- a/test/test_api.py
+++ b/test/test_api.py
@@ -434,7 +434,7 @@ class SourceOmitIncludeTest(OmitIncludeTestsMixin, CoverageTest):
         import usepkgs                      # pylint: disable=F0401,W0612
         cov.stop()
         summary = cov.data.summary()
-        for k, v in summary.items():
+        for k, v in list(summary.items()):
             assert k.endswith(".py")
             summary[k[:-3]] = v
         return summary