diff --git a/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/pipelines/gatk/GatkPipeline.scala b/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/pipelines/gatk/GatkPipeline.scala
index 59ac50aa7bd96cdccd67b086b6214c2d47e0107a..b05aae0f09413ac2978bef2fb62281140f9f0f6c 100644
--- a/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/pipelines/gatk/GatkPipeline.scala
+++ b/biopet-framework/src/main/scala/nl/lumc/sasc/biopet/pipelines/gatk/GatkPipeline.scala
@@ -171,7 +171,7 @@ class GatkPipeline(val root: Configurable) extends QScript with MultiSampleQScri
       if (!bamFile.exists) throw new IllegalStateException("Bam in config does not exist, file: " + bamFile)
       
       if (config("bam_to_fastq", default = false).getBoolean) {
-        val samToFastq = SamToFastq(this, bamFile, runDir + sampleID + "-" + runID + ".R1.fastq", runDir + sampleID + "-" + runID + ".R1.fastq")
+        val samToFastq = SamToFastq(this, bamFile, runDir + sampleID + "-" + runID + ".R1.fastq", runDir + sampleID + "-" + runID + ".R2.fastq")
         add(samToFastq)
         val mapping = Mapping.loadFromLibraryConfig(this, runConfig, sampleConfig, runDir, startJobs = false)
         mapping.input_R1 = samToFastq.fastqR1