diff --git a/doc/src/Developer_write.rst b/doc/src/Developer_write.rst
index fe610bde6a..ef4d06a5f6 100644
--- a/doc/src/Developer_write.rst
+++ b/doc/src/Developer_write.rst
@@ -6,6 +6,7 @@ be extended by writing new classes that derive from existing
 parent classes in LAMMPS.  Here, some specific coding
 details are provided for writing code for LAMMPS.
 
+
 .. toctree::
    :maxdepth: 1