diff --git a/include/libxml/parserInternals.h b/include/libxml/parserInternals.h
index a5ca057c..c4d4363b 100644
--- a/include/libxml/parserInternals.h
+++ b/include/libxml/parserInternals.h
@@ -318,10 +318,6 @@ XMLPUBFUN xmlParserCtxtPtr
 						 const xmlChar *base);
 XMLPUBFUN void
 			xmlCtxtErrMemory	(xmlParserCtxtPtr ctxt);
-XMLPUBFUN void
-			xmlCtxtErrIO		(xmlParserCtxtPtr ctxt,
-						 int code,
-						 const char *uri);
 XMLPUBFUN int
 			xmlSwitchEncoding	(xmlParserCtxtPtr ctxt,
 						 xmlCharEncoding enc);
diff --git a/include/private/parser.h b/include/private/parser.h
index d7bb782a..b14bebf9 100644
--- a/include/private/parser.h
+++ b/include/private/parser.h
@@ -57,6 +57,9 @@ xmlFatalErr(xmlParserCtxtPtr ctxt, xmlParserErrors error, const char *info);
 XML_HIDDEN void LIBXML_ATTR_FORMAT(3,0)
 xmlWarningMsg(xmlParserCtxtPtr ctxt, xmlParserErrors error,
               const char *msg, const xmlChar *str1, const xmlChar *str2);
+XML_HIDDEN void
+xmlCtxtErrIO(xmlParserCtxtPtr ctxt, int code, const char *uri);
+
 XML_HIDDEN void
 xmlHaltParser(xmlParserCtxtPtr ctxt);
 XML_HIDDEN int