diff --git a/data-computer/v1/lda-segment.ini b/data-computer/v1/lda-segment.ini
index df61c1f..79b43cf 100644
--- a/data-computer/v1/lda-segment.ini
+++ b/data-computer/v1/lda-segment.ini
@@ -52,7 +52,7 @@
 
 # Step 2.1.1 (spécifique): Propose un reformatage de sortie pour usage simplifier dans lodex
 [fork/exchange]
-value = get('value.topics').map((o, i) => _.zip(o.words, o.words_weights).map(x=>x.concat(i).concat(o.topic_weight))).flatten().map(y=> ({source: y[0], target: y[2], weight: y[1], origin: self.id}))
+value = get('value.topics').map((o, i) => _.zip(o.words, o.words_weights).map(x=>x.concat(i).concat(o.topic_weight))).flatten().map(y=> ({source: y[0], target: y[2], weight: y[1], origin: self.id})).filter(Boolean)
 [fork/ungroup]
 [fork/identify]
 path = uuid