diff --git a/bark/python_wrapper/world/ltl.cpp b/bark/python_wrapper/world/ltl.cpp
index ad07fc422..ffacb0287 100644
--- a/bark/python_wrapper/world/ltl.cpp
+++ b/bark/python_wrapper/world/ltl.cpp
@@ -103,7 +103,7 @@ void python_ltl(py::module m) {
                                   b.GetCheckLateralDist());
           },
           [](py::tuple t) {
-            if (t.size() != 11)
+            if (t.size() != 12)
               throw std::runtime_error("Invalid label evaluator state!");
             return new SafeDistanceLabelFunction(
                 t[0].cast<std::string>(), t[1].cast<bool>(),
@@ -484,4 +484,4 @@ void python_ltl(py::module m) {
             return new GenericEgoLabelFunction<EvaluatorCollisionEgoAgent>(
                 t[0].cast<std::string>());
           }));
-}
\ No newline at end of file
+}