diff --git a/docs/howto/how_to_aggregate_annotation.md b/docs/howto/how_to_aggregate_annotation.md
index 890071fd..99997e08 100644
--- a/docs/howto/how_to_aggregate_annotation.md
+++ b/docs/howto/how_to_aggregate_annotation.md
@@ -4,3 +4,4 @@ There are two scripts in AGAT in order to aggregate annotations. They do not beh
 
 ![](../img/aggregate_annotations.png "example")
 
+ 
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