diff --git a/libtlang/include/tlang.h b/libtlang/include/tlang.h
index 67634bd..d3d5d90 100644
--- a/libtlang/include/tlang.h
+++ b/libtlang/include/tlang.h
@@ -285,7 +285,7 @@ void list_create(runtime_t* rt,list_tobject_t* ls,int count);
 void list_add(list_tobject_t* a,tobject_t* item);
 void string_appendn(string_t* s,double val);
 bool string_samep(string_t* s,const char* text);
-string_t* string_replace(string_t* text,string_t* old,string_t* new);
+string_t* string_replace(string_t* text,string_t* old,string_t*);
 tobject_t* string_split(runtime_t* rt,string_t* text,string_t* del,int max,bool empty);
 bool string_startswith(string_t* haystack,string_t* needle);
 bool string_endswith(string_t* haystack,string_t* needle);