diff --git a/scripts/05_CDS_search/S03_remove_site_with_not_enough_species_represented.py b/scripts/05_CDS_search/S03_remove_site_with_not_enough_species_represented.py
index 62f6b56..4594e5f 100644
--- a/scripts/05_CDS_search/S03_remove_site_with_not_enough_species_represented.py
+++ b/scripts/05_CDS_search/S03_remove_site_with_not_enough_species_represented.py
@@ -176,7 +176,7 @@ def remove_position_with_too_much_missing_data(bash_aa, bash_nuc, MIN_SPECIES_NB
         OUTnuc=open("%s/%s" %(path_OUT2, new_name), "w")
         for fasta_name in filtered_bash_nuc.keys():
             seq_nuc = filtered_bash_nuc[fasta_name]
-            OUTnuc.write("%s\n" %fasta_name)
+            OUTnuc.write("%s\n" %fasta_name[0:3])
             OUTnuc.write("%s\n" %seq_nuc)
         OUTnuc.close()
     else:
@@ -188,4 +188,4 @@ def remove_position_with_too_much_missing_data(bash_aa, bash_nuc, MIN_SPECIES_NB
 print "\nTotal number of locus recorded  = %d" %n0
 print "\tTotal number of locus with no indels (SAVED) = %d" %good
 print "\tTotal number of locus, when removing indel, wich are empty (EXCLUDED) = %d" %bad
-print ""
\ No newline at end of file
+print ""