Typecode for AHTOCType was wrong. Fixed.
diff --git a/Mac/Modules/ah/_AHmodule.c b/Mac/Modules/ah/_AHmodule.c
index 7543e54..cf69076 100644
--- a/Mac/Modules/ah/_AHmodule.c
+++ b/Mac/Modules/ah/_AHmodule.c
@@ -52,7 +52,7 @@
 	PyObject *_res = NULL;
 	OSStatus _err;
 	AHTOCType toctype;
-	if (!PyArg_ParseTuple(_args, "s",
+	if (!PyArg_ParseTuple(_args, "h",
 	                      &toctype))
 		return NULL;
 	_err = AHGotoMainTOC(toctype);
diff --git a/Mac/Modules/ah/ahsupport.py b/Mac/Modules/ah/ahsupport.py
index b07c779..a1e6d00 100644
--- a/Mac/Modules/ah/ahsupport.py
+++ b/Mac/Modules/ah/ahsupport.py
@@ -17,7 +17,7 @@
 from macsupport import *
 
 # Create the type objects
-AHTOCType = Type("AHTOCType", "s")
+AHTOCType = Type("AHTOCType", "h")
 
 includestuff = includestuff + """
 #ifdef WITHOUT_FRAMEWORKS