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-rw-r--r--tools/verification/rvgen/rvgen/ltl2k.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/verification/rvgen/rvgen/ltl2k.py b/tools/verification/rvgen/rvgen/ltl2k.py
index b8ac584fe250..81fd1f5ea5ea 100644
--- a/tools/verification/rvgen/rvgen/ltl2k.py
+++ b/tools/verification/rvgen/rvgen/ltl2k.py
@@ -75,7 +75,7 @@ class ltl2k(generator.Monitor):
if not self.name:
self.name = Path(file_path).stem
- def _fill_states(self) -> str:
+ def _fill_states(self) -> list[str]:
buf = [
"enum ltl_buchi_state {",
]