diff --git a/doc/config-ref-rst/source/ext/remote.py b/doc/config-ref-rst/source/ext/remote.py
index 9331710053..5ff9f546ea 100644
--- a/doc/config-ref-rst/source/ext/remote.py
+++ b/doc/config-ref-rst/source/ext/remote.py
@@ -30,3 +30,4 @@ class RemoteCodeBlock(code.CodeBlock):
 
 def setup(app):
     app.add_directive('remote-code-block', RemoteCodeBlock)
+    return {'parallel_read_safe': True}