--- a/xorriso/parse_exec.c
+++ b/xorriso/parse_exec.c
@@ -2982,7 +2982,7 @@
 
  Xorriso_alloc_meM(prog, char, 5 * SfileadrL);
 
- wait3(NULL,WNOHANG,NULL); /* just to remove any old dead child */
+ wait4(-1,NULL,WNOHANG,NULL); /* just to remove any old dead child */
 
  if(flag & 2) {
    ret= Xorriso_make_argv_with_null(xorriso, in_argc, in_argv,