diff --git a/xorriso/parse_exec.h b/xorriso/parse_exec.h
index 2344689f..71c5227a 100644
--- a/xorriso/parse_exec.h
+++ b/xorriso/parse_exec.h
@@ -80,7 +80,7 @@ int Xorriso_pipe_open(struct XorrisO *xorriso, char *purpose, char *cmd,
                       int in_argc, char **in_argv, char *env_path,
                       int *fd, pid_t *forked_pid, int flag);
 
-int Xorriso_wait_child_end(struct XorrisO *xorriso, int child_pid,
+int Xorriso_wait_child_end(struct XorrisO *xorriso, pid_t child_pid,
                            int *status, int flag);
 
 
diff --git a/xorriso/xorriso_timestamp.h b/xorriso/xorriso_timestamp.h
index 3edaeb30..8bdcfa08 100644
--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2014.06.28.070001"
+#define Xorriso_timestamP "2014.06.28.071001"