diff --git a/infra/schema/src/test/resources/common/xml/ns/certification-case-1.xml b/infra/schema/src/test/resources/common/xml/ns/certification-case-1.xml
index 95fef0895e1..a32b5eef124 100644
--- a/infra/schema/src/test/resources/common/xml/ns/certification-case-1.xml
+++ b/infra/schema/src/test/resources/common/xml/ns/certification-case-1.xml
@@ -22,7 +22,7 @@
id="4">
- 1
+ 1
1