diff --git a/frangiPANe/snakefiles/merge_flagstat.smk b/frangiPANe/snakefiles/merge_flagstat.smk
index 8c4d82e6d23b4f63a15dca3472ddd529bf833290..c671745e8df5446b5f6868c7766d83358c861db3 100644
--- a/frangiPANe/snakefiles/merge_flagstat.smk
+++ b/frangiPANe/snakefiles/merge_flagstat.smk
@@ -34,7 +34,7 @@ rule merge_flagstat:
                 for line in stat:
                     line = line.rstrip()
 
-                    if 'mapped (' in line or ('paired (' in line and not 'primary' in line) or 'singleton' in line:
+                    if ('mapped (' in line and not 'primary' in line) or 'paired (' in line  or 'singleton' in line:
                         # print(line.split('(')[1].split('%')[0])
                         newLine += f",{line.split('(')[1].split('%')[0]}"