diff --git a/CHANGELOG.md b/CHANGELOG.md
index 820db382..dd8b0974 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,8 @@
 # Changelog
+## 2.1.2 [2026-01-26]
+### Fixed
+- Fixed numbers for pairwise
+
 ## 2.1.0 [2026-01-15]
 ### Added
 - rawResponses payload.campaignId indexing
diff --git a/pom.xml b/pom.xml
index 7c24a037..c7ffecd3 100644
--- a/pom.xml
+++ b/pom.xml
@@ -4,7 +4,7 @@
     <modelVersion>4.0.0</modelVersion>
     <groupId>fr.insee.genesis</groupId>
     <artifactId>genesis-api</artifactId>
-    <version>2.1.1</version>
+    <version>2.1.2</version>
     <packaging>jar</packaging>
     <name>genesis-api</name>
 
diff --git a/src/main/java/fr/insee/genesis/domain/service/rawdata/RawResponseService.java b/src/main/java/fr/insee/genesis/domain/service/rawdata/RawResponseService.java
index d0f665f9..b0d6cb72 100644
--- a/src/main/java/fr/insee/genesis/domain/service/rawdata/RawResponseService.java
+++ b/src/main/java/fr/insee/genesis/domain/service/rawdata/RawResponseService.java
@@ -561,9 +561,9 @@ static void handlePairwiseCollectedVariable(
         for (int individualIndex = 0; individualIndex < individuals.size(); individualIndex++) {
             List<String> individualLinks = (List<String>) individuals.get(individualIndex);
 
-            for (int linkIndex = 1; linkIndex <= Constants.MAX_LINKS_ALLOWED; linkIndex++) {
+            for (int linkIndex = 1; linkIndex < Constants.MAX_LINKS_ALLOWED; linkIndex++) {
                 dstSurveyUnitModel.getCollectedVariables().add(
-                        buildPairwiseVariable(individualLinks, linkIndex, individualIndex, groupName)
+                        buildPairwiseVariable(individualLinks, linkIndex, individualIndex+ 1, groupName)
                 );
             }
         }