diff --git a/roms/seabios-hppa/scripts/buildversion.py b/roms/seabios-hppa/scripts/buildversion.py
index 8875497cb7..390b1bbbf8 100755
--- a/roms/seabios-hppa/scripts/buildversion.py
+++ b/roms/seabios-hppa/scripts/buildversion.py
@@ -125,9 +125,8 @@ def main():
         if not ver:
             ver = "?"
     if not cleanbuild:
-        btime = time.strftime("%Y%m%d_%H%M%S")
-        hostname = socket.gethostname()
-        ver = "%s-%s-%s" % (ver, btime, hostname)
+        btime = time.strftime("%Y%m%d_%H%M%S", time.gmtime(int(os.environ.get('SOURCE_DATE_EPOCH', time.time()))))
+        ver = "%s-%s" % (ver, btime)
     write_version(outfile, ver + options.extra, toolstr)
 
 if __name__ == '__main__':