diff --git a/test/dewav.c b/test/dewav.c
index ba86c21..9178f0c 100644
--- a/test/dewav.c
+++ b/test/dewav.c
@@ -89,7 +89,8 @@ help:;
  if(ret<=0)
    exit(4);
  if(strcmp(out_path,"-")!=0) {
-   out_fd= open(out_path, O_WRONLY|O_CREAT|O_TRUNC);
+   out_fd= open(out_path, O_WRONLY | O_CREAT | O_TRUNC, 
+                S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH);
    if(out_fd == -1) {
      fprintf(stderr, "Cannot open file: %s\n", out_path);
      fprintf(stderr, "Error reported: '%s'  (%d)\n",strerror(errno), errno);