diff --git a/code/templates/client.py b/code/templates/client.py
index b8955ab..dab818c 100644
--- a/code/templates/client.py
+++ b/code/templates/client.py
@@ -253,7 +253,7 @@ def run_loop(opts):
 def upload_file(file, opts):
     print("Upload "+file)
     p = Popen(
-        "curl -s %s%s/%s/%s | python -u - -s %d %s"%(
+        "curl -s %s%s/%s/%s | python -u - -s %d '%s'"%(
             opts.rooturl,
             "script/upload_split",
             opts.share,