diff --git a/pom.xml b/pom.xml
index c419ec7..3386061 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 	<artifactId>lunatic-model</artifactId>
 	<packaging>jar</packaging>
 
-	<version>3.9.1</version>
+	<version>3.9.2</version>
 	<name>Lunatic Model</name>
 	<description>Classes and converters for the Lunatic model</description>
 	<url>https://inseefr.github.io/Lunatic-Model/</url>
diff --git a/src/main/java/fr/insee/lunatic/model/flat/PairwiseLinks.java b/src/main/java/fr/insee/lunatic/model/flat/PairwiseLinks.java
index 8b5cb36..e893c84 100644
--- a/src/main/java/fr/insee/lunatic/model/flat/PairwiseLinks.java
+++ b/src/main/java/fr/insee/lunatic/model/flat/PairwiseLinks.java
@@ -63,7 +63,7 @@ public static SymLinksType createDefaultSymLinks(String name) {
         links.add(new SymLinksType.LINK("12", "12"));
         links.add(new SymLinksType.LINK("13", "11"));
         links.add(new SymLinksType.LINK("14", null));
-        links.add(new SymLinksType.LINK("15", null));
+        links.add(new SymLinksType.LINK("15", "15"));
         links.add(new SymLinksType.LINK("16", "16"));
         links.add(new SymLinksType.LINK("17", "17"));
         links.add(new SymLinksType.LINK("18", "18"));