os.exec -> os.execv
diff --git a/Demo/stdwin/jukebox.py b/Demo/stdwin/jukebox.py
index bc43cb5..377078c 100755
--- a/Demo/stdwin/jukebox.py
+++ b/Demo/stdwin/jukebox.py
@@ -400,7 +400,7 @@
 	pid = os.fork()
 	if pid == 0:
 		# Child
-		os.exec(SFPLAY, args)
+		os.execv(SFPLAY, args)
 		# NOTREACHED
 	else:
 		# Parent