1 files changed, 1 insertions, 1 deletions

diff --git a/include/opkele/expat.h b/include/opkele/expat.h
index 21be003..c154785 100644
--- a/include/opkele/expat.h
+++ b/include/opkele/expat.h
@@ -1,45 +1,45 @@
 #ifndef __OPKELE_EXPAT_H
 #define __OPKELE_EXPAT_H
 
 #include <cassert>
 #include <expat.h>
 
 namespace opkele {
 
     namespace util {
 
 	class expat_t {
 	    public:
 		XML_Parser _x;
 
 		expat_t() : _x(0) { }
 		expat_t(XML_Parser x) : _x(x) { }
 		virtual ~expat_t() throw();
 
 		expat_t& operator=(XML_Parser x);
 
-		operator const XML_Parser(void) const { return _x; }
+		operator XML_Parser(void) const { return _x; }
 		operator XML_Parser(void) { return _x; }
 
 		inline bool parse(const char *s,int len,bool final=false) {
 		    assert(_x);
 		    return XML_Parse(_x,s,len,final);
 		}
 
 		virtual int unknown_encoding(const XML_Char * /* n */,XML_Encoding * /* i */) { return XML_STATUS_ERROR; }
 		void set_unknown_encoding_handler();
 
 		virtual void start_element(const XML_Char * /* n */,const XML_Char ** /* a */) { }
 		virtual void end_element(const XML_Char * /* n */) { }
 		void set_element_handler();
 
 		virtual void character_data(const XML_Char * /* s */,int /* l */) { }
 		void set_character_data_handler();
 
 		virtual void processing_instruction(const XML_Char * /* t */,const XML_Char * /* d */) { }
 		void set_processing_instruction_handler();
 
 		virtual void comment(const XML_Char * /* d */) { }
 		void set_comment_handler();
 
 		virtual void start_cdata_section() { }