--- xcdroast/src/io.c
+++ xcdroast/src/io.c
@@ -4736,7 +4736,7 @@
 	dolog(3, "Saving extended output to %s\n", fname);
 
 	/* write to file */
-	fd = open(fname,O_WRONLY | O_CREAT);
+	fd = open(fname,O_WRONLY | O_CREAT, 0600);
 	if (fd < 0) {
 		g_warning("Can't open file %s for writing\n",fname);
 		return 1;