diff --git a/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/function/seqtk/Seqtk.scala b/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/function/seqtk/Seqtk.scala
new file mode 100644
index 0000000000000000000000000000000000000000..3d83d397dd61d1eec7c5b7187e405f2069fd82dc
--- /dev/null
+++ b/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/function/seqtk/Seqtk.scala
@@ -0,0 +1,21 @@
+/**
+ * Copyright (c) 2014 Leiden University Medical Center
+ *
+ * @author  Wibowo Arindrarto
+ */
+
+package nl.lumc.sasc.biopet.function.seqtk
+
+import java.io.File
+import org.broadinstitute.gatk.utils.commandline.{ Input, Output }
+import nl.lumc.sasc.biopet.core.BiopetCommandLineFunction
+import nl.lumc.sasc.biopet.core.config.Configurable
+
+/**
+ * Abstract class for all seqtk wrappers.
+ */
+abstract class Seqtk extends BiopetCommandLineFunction {
+  executable = config("exe", default = "seqtk", submodule = "seqtk")
+  override def versionCommand = executable
+  override val versionRegex = """Version: (.*)""".r
+}
diff --git a/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/function/Seqtk.scala b/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/function/seqtk/SeqtkSeq.scala
similarity index 90%
rename from biopet-framework/src/main/scala/nl/lumc/sasc/biopet/function/Seqtk.scala
rename to biopet-framework/src/main/scala/nl/lumc/sasc/biopet/function/seqtk/SeqtkSeq.scala
index 286b7235b4e3ab8bccb0e3fbb19f752ef9cfc93f..eb592a44bd0f2da23e1ad14dce2246df94561623 100644
--- a/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/function/Seqtk.scala
+++ b/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/function/seqtk/SeqtkSeq.scala
@@ -4,22 +4,13 @@
  * @author  Wibowo Arindrarto
  */
 
-package nl.lumc.sasc.biopet.function
+package nl.lumc.sasc.biopet.function.seqtk
 
 import java.io.File
 import org.broadinstitute.gatk.utils.commandline.{ Input, Output }
 import nl.lumc.sasc.biopet.core.BiopetCommandLineFunction
 import nl.lumc.sasc.biopet.core.config.Configurable
 
-/**
- * Abstract class for all seqtk wrappers.
- */
-abstract class Seqtk extends BiopetCommandLineFunction {
-  executable = config("exe", default = "seqtk", submodule = "seqtk")
-  override def versionCommand = executable
-  override val versionRegex = """Version: (.*)""".r
-}
-
 /**
  * Wrapper for the seqtk seq subcommand.
  * Written based on seqtk version 1.0-r63-dirty.