diff --git a/doc/rst/source/grd2cpt.rst b/doc/rst/source/grd2cpt.rst
index aa6e81d8298..89a6ed08c84 100644
--- a/doc/rst/source/grd2cpt.rst
+++ b/doc/rst/source/grd2cpt.rst
@@ -224,6 +224,7 @@ Optional Arguments
     only applies if **-E** selects CDF output.
 .. include:: explain_-bo.rst_
 
+.. |Add_-h| unicode:: 0x20 .. just an invisible code
 .. include:: explain_-h.rst_
 
 .. include:: explain_help.rst_
diff --git a/doc/rst/source/makecpt.rst b/doc/rst/source/makecpt.rst
index 19793db5ab5..3db6b5ca4d5 100644
--- a/doc/rst/source/makecpt.rst
+++ b/doc/rst/source/makecpt.rst
@@ -215,6 +215,7 @@ Optional Arguments
 .. |Add_-di| unicode:: 0x20 .. just an invisible code
 .. include:: explain_-di.rst_
 
+.. |Add_-h| unicode:: 0x20 .. just an invisible code
 .. include:: explain_-h.rst_
 
 .. include:: explain_-icols.rst_