diff --git a/python/gtsam/preamble/nonlinear.h b/python/gtsam/preamble/nonlinear.h
index 661215e59..a34e73058 100644
--- a/python/gtsam/preamble/nonlinear.h
+++ b/python/gtsam/preamble/nonlinear.h
@@ -9,5 +9,4 @@
  * automatic STL binding, such that the raw objects can be accessed in Python.
  * Without this they will be automatically converted to a Python object, and all
  * mutations on Python side will not be reflected on C++.
- */
-#include <pybind11/stl.h>
+ */
\ No newline at end of file