diff --git a/biopet.wdl b/biopet.wdl
index 46f617975e7d1e2a34f41dca827112e43415c2cb..6e5ae10aafaf9e3125999b00e1634bb728a0bb99 100644
--- a/biopet.wdl
+++ b/biopet.wdl
@@ -297,6 +297,9 @@ task Seqstat {
         --fastq ${fastq} \
         --output ${outputFile}
     }
+    output {
+        File seqstatsJson = outputFile
+    }
     runtime {
         memory: ceil(mem * select_first([memoryMultiplier, 2.0]))
     }