diff --git a/include/pybind11/cast.h b/include/pybind11/cast.h
index 0e4fbde11..3e0f92082 100644
--- a/include/pybind11/cast.h
+++ b/include/pybind11/cast.h
@@ -443,7 +443,6 @@ PYBIND11_NOINLINE inline std::string error_string() {
                 handle(frame->f_code->co_name).cast<std::string>() + "\n";
             frame = frame->f_back;
         }
-        trace = trace->tb_next;
     }
 #endif