diff --git a/src/agat/agat_sp_complement_annotations/script.sh b/src/agat/agat_sp_complement_annotations/script.sh
index 969a1329..36a668a8 100644
--- a/src/agat/agat_sp_complement_annotations/script.sh
+++ b/src/agat/agat_sp_complement_annotations/script.sh
@@ -14,8 +14,6 @@ IFS=";" read -ra file_names <<< "$par_add"
 for file in "${file_names[@]}"; do
     input_files+="--add $file "
 done
-unset IFS
-
 
 # run agat_sp_complement_annotations.pl
 agat_sp_complement_annotations.pl \