diff --git a/playbook/roles/standalone-shared/files/erp5-show b/playbook/roles/standalone-shared/files/erp5-show
index cfa61f6943ef4589c479249b41a2661a8fecdc45..d8555275ff0fb5e501572b3f2d9d6b40cb3e0b13 100755
--- a/playbook/roles/standalone-shared/files/erp5-show
+++ b/playbook/roles/standalone-shared/files/erp5-show
@@ -147,7 +147,7 @@ def status():
 
       try:
         r1 = urllib.request.urlopen(frontend, context=ctx)
-        if 'Zope Management Interface' in r1.read():
+        if b'Zope Management Interface' in r1.read():
           connected = True
         else:
           print('URL %s ready, but does not reply with Zope' % frontend)