diff --git a/doc/manual/source/the-model-file.rst b/doc/manual/source/the-model-file.rst
index 8e9ad56445a72f5f5dcddd68399adc83d7426b15..a7b2e8523a0d3844d97f3a9c3f6400b4bbe1cbb6 100644
--- a/doc/manual/source/the-model-file.rst
+++ b/doc/manual/source/the-model-file.rst
@@ -15865,7 +15865,7 @@ Misc commands
     ``pdflatex`` and automatically tries to load all required
     packages. Requires the following LaTeX packages:
     ``breqn``, ``psfrag``, ``graphicx``, ``epstopdf``, ``longtable``,
-    ``booktabs``, ``caption``, ``float,`` ``amsmath``, ``amsfonts``,
+    ``booktabs``, ``caption``, ``float,`` ``amsmath``, ``amsfonts``, ``amssymb``, 
     and ``morefloats``.