1 files changed, 1 insertions, 1 deletions
diff --git a/include/asterisk/chanvars.h b/include/asterisk/chanvars.h
index d37c159ee..a871707a3 100755
--- a/include/asterisk/chanvars.h
+++ b/include/asterisk/chanvars.h
@@ -22,7 +22,7 @@ struct ast_var_t {
 	AST_LIST_ENTRY(ast_var_t) entries;
 };
 
-struct ast_var_t *ast_var_assign(char *name,char *value);
+struct ast_var_t *ast_var_assign(const char *name, const char *value);
 void ast_var_delete(struct ast_var_t *var);
 char *ast_var_name(struct ast_var_t *var);
 char *ast_var_value(struct ast_var_t *var);