diff --git a/scripts/sync-i18n-files.ts b/scripts/sync-i18n-files.ts
index ad8a712f21..a9b1896e7b 100755
--- a/scripts/sync-i18n-files.ts
+++ b/scripts/sync-i18n-files.ts
@@ -192,7 +192,10 @@ function createNewChunkComparingSourceAndTarget(correspondingTargetChunk, source
 
   const targetList = correspondingTargetChunk.split("\n");
   const oldKeyValueInTargetComments = getSubStringWithRegex(correspondingTargetChunk, "\\s*\\/\\/\\s*\".*");
-  const keyValueTarget = targetList[targetList.length - 1];
+  let keyValueTarget = targetList[targetList.length - 1];
+  if (!keyValueTarget.endsWith(",")) {
+    keyValueTarget = keyValueTarget + ",";
+  }
 
   if (oldKeyValueInTargetComments != null) {
     const oldKeyValueUncommented = getSubStringWithRegex(oldKeyValueInTargetComments[0], "\".*")[0];