diff --git a/utils/group_nearby_calls_of_same_AF_and_generate_output_table.pl b/utils/group_nearby_calls_of_same_AF_and_generate_output_table.pl
index bc349e0f65a4b59e5b1f283ce3169333b5c4f21c..f56062ffc133e8d578519efb1bb43ac59e6cfd3c 100755
--- a/utils/group_nearby_calls_of_same_AF_and_generate_output_table.pl
+++ b/utils/group_nearby_calls_of_same_AF_and_generate_output_table.pl
@@ -3,7 +3,7 @@ use strict;
 
 
 my $min_AF_for_grouping =0.03;
-my $AF_simiarity_threshold = 0.25;
+my $AF_simiarity_threshold = 0.6;
 my $input_file = $ARGV[0];
 my $safe_llr_to_ref = 30;
 if (!$ARGV[0]) {