diff --git a/BadMedicine.Dicom/DicomDataGenerator.cs b/BadMedicine.Dicom/DicomDataGenerator.cs
index 9ed1aca..3efc766 100644
--- a/BadMedicine.Dicom/DicomDataGenerator.cs
+++ b/BadMedicine.Dicom/DicomDataGenerator.cs
@@ -281,7 +281,7 @@ public DicomDataset GenerateTestDataset(Person p,Series series)
             ds.AddOrUpdate(DicomTag.SliceLocation, "");
             ds.AddOrUpdate(DicomTag.SliceThickness, "");
             ds.AddOrUpdate(DicomTag.SpacingBetweenSlices, "");
-            ds.AddOrUpdate(DicomTag.SpiralPitchFactor, "0.0");
+            ds.AddOrUpdate(DicomTag.SpiralPitchFactor, "0");
             ds.AddOrUpdate(DicomTag.KVP, "0");
             ds.AddOrUpdate(DicomTag.ExposureTime, "0");
             ds.AddOrUpdate(DicomTag.Exposure, "0");