fix: lcov report indexeerror for some Jinja2 files. #1553

1 files changed, 2 insertions, 0 deletions

diff --git a/coverage/lcovreport.py b/coverage/lcovreport.py
index 8e3a5768..3da164d5 100644
--- a/coverage/lcovreport.py
+++ b/coverage/lcovreport.py
@@ -74,6 +74,8 @@ class LcovReporter:
             # characters of the encoding ("==") are removed from the hash to
             # allow genhtml to run on the resulting lcov file.
             if source_lines:
+                if covered-1 >= len(source_lines):
+                    break
                 line = source_lines[covered-1]
             else:
                 line = ""