diff --git a/libsrc/Itk2DicomConverter.cpp b/libsrc/Itk2DicomConverter.cpp
index eb08f6f2..56b21b8a 100644
--- a/libsrc/Itk2DicomConverter.cpp
+++ b/libsrc/Itk2DicomConverter.cpp
@@ -110,17 +110,20 @@ namespace dcmqi {
     }
 
     // Shared FGs: DerivationImageSequence
-    if(referencesGeometryCheck && dcmDatasets.length() > 1){
-      FGDerivationImage *derimg = new FGDerivationImage();
-      OFVector<SourceImageItem*> srcimgItems;
+    if(referencesGeometryCheck && dcmDatasets.size() > 1){
+      FGDerivationImage *fgder = new FGDerivationImage();
+      DerivationImageItem *derimgItem;
 
-			DSRBasicCodedEntry code_seg=CODE_DCM_Segmentation_113076;
+      DSRBasicCodedEntry code_seg=CODE_DCM_Segmentation_113076;
+      CHECK_COND(fgder->addDerivationImageItem(CodeSequenceMacro(code_seg.CodeValue,code_seg.CodingSchemeDesignator,
+			code_seg.CodeMeaning),"",derimgItem));
 
-      derimg->addSourceImageItems(dcmDatasets, 
-        CodeSequenceMacro(code_seg.CodeValue,code_seg.CodingSchemeDesignator, code_seg.CodeMeaning)), &srcimgItems, OFTrue /*skip file errors */);
+      OFVector<SourceImageItem*> srcimgItems;
+      derimgItem->addSourceImageItems(dcmDatasets, 
+        CodeSequenceMacro(code_seg.CodeValue,code_seg.CodingSchemeDesignator, code_seg.CodeMeaning), srcimgItems, OFTrue /*skip file errors */);
 
-      CHECK_COND(segdoc->addForAllFrames(*derimg));
-      delete derimg;
+      CHECK_COND(segdoc->addForAllFrames(*fgder));
+      delete fgder;
     }
 
     // Iterate over the files and labels available in each file, create a segment for each label,