diff --git a/tests/all-stable-safe.ecf b/tests/all-stable-safe.ecf
index 1f0b84f5..fccfd95c 100644
--- a/tests/all-stable-safe.ecf
+++ b/tests/all-stable-safe.ecf
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="ISO-8859-1"?>
-<system xmlns="http://www.eiffel.com/developers/xml/configuration-1-13-0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.eiffel.com/developers/xml/configuration-1-13-0 http://www.eiffel.com/developers/xml/configuration-1-13-0.xsd" name="all" uuid="1172C52C-6979-4293-8F01-80FADA5A2B69" library_target="all_stable">
+<system xmlns="http://www.eiffel.com/developers/xml/configuration-1-12-0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.eiffel.com/developers/xml/configuration-1-12-0 http://www.eiffel.com/developers/xml/configuration-1-12-0.xsd" name="all" uuid="1172C52C-6979-4293-8F01-80FADA5A2B69" library_target="all_stable">
 	<description>Integration project including many lib</description>
 	<target name="all_stable">
 		<root all_classes="true"/>