diff --git a/smoove.wdl b/smoove.wdl
index d1011f6cd3623e13377af67d000639b1c438bdaa..7a7e4305feabbc043fc443c093366c1982d4f718 100644
--- a/smoove.wdl
+++ b/smoove.wdl
@@ -43,6 +43,7 @@ task Call {
         --fasta ~{referenceFasta} \
         --removepr \
         --genotype \
+        --duphold \
         ~{bamFile}
     }