diff --git a/documentation/sphinx/source/api/codata.rst b/documentation/sphinx/source/api/codata.rst
index ad8d459..503008d 100644
--- a/documentation/sphinx/source/api/codata.rst
+++ b/documentation/sphinx/source/api/codata.rst
@@ -11,11 +11,23 @@ Fortran
 C
 -------
 
+* `codata.h`: Main C header for the whole library.
+
 .. literalinclude:: ../../../../include/codata.h
     :language: C
 
+Version
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+* `codata_version.h`: C Header.
+
 .. literalinclude:: ../../../../include/codata_version.h
     :language: C
 
+Constants
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+* `codata_constants.h`: C Header.
+
 .. literalinclude:: ../../../../include/codata_constants.h
     :language: C
\ No newline at end of file