diff --git a/README.rst b/README.rst
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--- a/README.rst
+++ b/README.rst
@@ -1,6 +1,9 @@
 Poezio OMEMO plugin
 ###################
 
+**This plugin will not work with Poezio 0.12.**
+
+
 This is a `Poezio <https://poez.io>`_ plugin providing OMEMO support. It
 distributed separately for licensing reasons.