diff --git a/Doc/c-api/import.rst b/Doc/c-api/import.rst
index c4816f5..bed6089 100644
--- a/Doc/c-api/import.rst
+++ b/Doc/c-api/import.rst
@@ -232,7 +232,7 @@
    tricks with this to provide a dynamically created collection of frozen modules.
 
 
-.. cfunction:: int PyImport_AppendInittab(char *name, void (*initfunc)(void))
+.. cfunction:: int PyImport_AppendInittab(const char *name, void (*initfunc)(void))
 
    Add a single module to the existing table of built-in modules.  This is a
    convenience wrapper around :cfunc:`PyImport_ExtendInittab`, returning ``-1`` if