diff --git a/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/Raxml.scala b/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/Raxml.scala
index a92926381614fc998a7a7afe367f1cb9457b79fc..965a621a6294386b8899c70c2ff0f6691733484f 100644
--- a/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/Raxml.scala
+++ b/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/Raxml.scala
@@ -10,7 +10,7 @@ class Raxml(val root: Configurable) extends BiopetCommandLineFunction {
   override val defaultThreads = 4
   override def versionCommand = executable + " -v"
   override val versionRegex = """.*version \w* .*""".r
-  
+
   @Input(doc = "Input phy/fasta file", required = true)
   var input: File = _
 
@@ -28,35 +28,35 @@ class Raxml(val root: Configurable) extends BiopetCommandLineFunction {
 
   @Argument(doc = "Name of output files", required = true)
   var n: String = _
-  
+
   @Argument(doc = "Name of output files", required = true)
   var f: String = "d"
 
   @Argument(doc = "Output directory", required = false)
   var w: String = jobLocalDir.getAbsolutePath
-  
+
   @Input(required = false)
   var t: File = _
-  
+
   @Input(required = false)
   var z: File = _
-  
+
   @Output(doc = "Output files", required = false)
   private var out: List[File] = Nil
-  
+
   executable = config("exe", default = "raxmlHPC")
 
   override def afterGraph {
     super.afterGraph
     f match {
-      case "d" if b.isEmpty => out +:= getBestTree
+      case "d" if b.isEmpty   => out +:= getBestTree
       case "d" if b.isDefined => out +:= getBootstrap
     }
   }
-  
+
   def getBestTree: File = new File(w + File.separator + "RAxML_bestTree." + n)
   def getBootstrap: File = new File(w + File.separator + "RAxML_bootstrap." + n)
-  
+
   def cmdLine = required(executable) +
     required("-m", m) +
     required("-s", input) +
diff --git a/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/picard/MarkDuplicates.scala b/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/picard/MarkDuplicates.scala
index bb9575e1a2dcfb3a3403af7d23e8c0e8bab6be0e..ca9dd4ab8d8d9ac862f5f3b5400f8ca17ebd6732 100644
--- a/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/picard/MarkDuplicates.scala
+++ b/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/picard/MarkDuplicates.scala
@@ -54,12 +54,12 @@ class MarkDuplicates(val root: Configurable) extends Picard {
 
   @Output(doc = "Bam Index", required = true)
   private var outputIndex: File = _
-  
+
   override def afterGraph {
     super.afterGraph
     if (createIndex) outputIndex = new File(output.getAbsolutePath.stripSuffix(".bam") + ".bai")
   }
-  
+
   override def commandLine = super.commandLine +
     repeat("INPUT=", input, spaceSeparated = false) +
     required("OUTPUT=", output, spaceSeparated = false) +
diff --git a/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/picard/SortSam.scala b/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/picard/SortSam.scala
index 82f1fac3d6f53e586e19285aded171a5c7a9b31a..473fd11fc5b2299ef3f4fbe7e3d87e3d19259cbc 100644
--- a/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/picard/SortSam.scala
+++ b/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/extensions/picard/SortSam.scala
@@ -18,12 +18,12 @@ class SortSam(val root: Configurable) extends Picard {
 
   @Output(doc = "Bam Index", required = true)
   private var outputIndex: File = _
-  
+
   override def afterGraph {
     super.afterGraph
     if (createIndex) outputIndex = new File(output.getAbsolutePath.stripSuffix(".bam") + ".bai")
   }
-  
+
   override def commandLine = super.commandLine +
     required("INPUT=", input, spaceSeparated = false) +
     required("OUTPUT=", output, spaceSeparated = false) +