diff --git a/public/scala/qscript/org/broadinstitute/sting/queue/qscripts/lib/VcfToPed.scala b/public/scala/qscript/org/broadinstitute/sting/queue/qscripts/lib/VcfToPed.scala
index 04f73d562..1c2620441 100644
--- a/public/scala/qscript/org/broadinstitute/sting/queue/qscripts/lib/VcfToPed.scala
+++ b/public/scala/qscript/org/broadinstitute/sting/queue/qscripts/lib/VcfToPed.scala
@@ -63,10 +63,10 @@ class VcfToPed extends QScript {
           toPed.dbsnp = dbsnp
           toPed.variant = variants
           toPed.metaData = meta
-          lazy val base : String = bed.getName.stripSuffix(".bed")+"_%".format(chunk)
-          lazy val tBed = new File(tmpdir,base+".bed")
-          lazy val bim = new File(tmpdir,base+".bim")
-          lazy val fam = new File(tmpdir,base+".fam")
+          val base : String = bed.getName.stripSuffix(".bed")+"_%d".format(chunk)
+          val tBed = new File(tmpdir,base+".bed")
+          val bim = new File(tmpdir,base+".bim")
+          val fam = new File(tmpdir,base+".fam")
           toPed.bed = tBed
           toPed.bim = bim
           toPed.fam = fam
@@ -89,10 +89,10 @@ class VcfToPed extends QScript {
         toPed.dbsnp = dbsnp
         toPed.variant = variants
         toPed.metaData = meta
-        lazy val base : String = bed.getName.stripSuffix(".bed")+"_%".format(chunk)
-        lazy val tBed = new File(tmpdir,base+".bed")
-        lazy val bim = new File(tmpdir,base+".bim")
-        lazy val fam = new File(tmpdir,base+".fam")
+        val base : String = bed.getName.stripSuffix(".bed")+"_%d".format(chunk)
+        val tBed = new File(tmpdir,base+".bed")
+        val bim = new File(tmpdir,base+".bim")
+        val fam = new File(tmpdir,base+".fam")
         toPed.bed = tBed
         toPed.bim = bim
         toPed.fam = fam