diff --git a/pyrelacs/repros/sinus.py b/pyrelacs/repros/sinus.py
new file mode 100644
index 0000000..4a7134d
--- /dev/null
+++ b/pyrelacs/repros/sinus.py
@@ -0,0 +1,3 @@
+class Sinus:
+    def __init__(self) -> None:
+        pass