diff --git a/biopet-tools/src/test/resources/flagstat_summary.txt b/biopet-tools/src/test/resources/flagstat_summary.txt
index e7984915cab425c8bd94dd0a22eae60e0407f518..da9e68b0a76a10864ad036099966e2dd4c97fe78 100644
--- a/biopet-tools/src/test/resources/flagstat_summary.txt
+++ b/biopet-tools/src/test/resources/flagstat_summary.txt
@@ -11,6 +11,7 @@
     "MateNegativeStrand" : 1,
     "FirstOfPair" : 1,
     "ReadPaired" : 1,
+    "Singletons" : 0,
     "SecondaryOrSupplementary" : 0,
     "SecondOfPair" : 0
 }
\ No newline at end of file