diff --git a/algo/core/kmerstore.h b/algo/core/kmerstore.h
index e6d386ad8ff29a5b3c4f616797ca73a802186987..514f4ae135c70a741b52323a37488b5cc85c50f3 100644
--- a/algo/core/kmerstore.h
+++ b/algo/core/kmerstore.h
@@ -333,7 +333,7 @@ string IKmerStore<T>::getLabel(T kmer) const {
   for (typename list< pair<T, string> >::const_iterator it = labels.begin(); it != labels.end(); ++it)
     if (it->first == kmer)
       return it->second ;
-  return "" ;
+  return "?" ;
 }
 
 // .getResults()
diff --git a/algo/core/segment.cpp b/algo/core/segment.cpp
index 69cc66ac3b020473f23948267fb08a6f09747dc3..7e6899fa427a3193a88255ff0f8add8b37a7ac9f 100644
--- a/algo/core/segment.cpp
+++ b/algo/core/segment.cpp
@@ -642,9 +642,10 @@ FineSegmenter::FineSegmenter(Sequence seq, Germline *germline, Cost segment_c)
   
   if (!germline->rep_5.size() || !germline->rep_3.size())
     {
-      // We check whether this sequence is segmented with MAX12 (with default e-value parameters)
+      // We check whether this sequence is segmented with MAX12 or MAX1U (with default e-value parameters)
       KmerSegmenter *kseg = new KmerSegmenter(seq, germline, THRESHOLD_NB_EXPECTED, 1);
-      if (kseg->isSegmented() && (!strcmp(germline->code.c_str(), PSEUDO_GERMLINE_MAX12)))
+      if (kseg->isSegmented() && ((!strcmp(germline->code.c_str(), PSEUDO_GERMLINE_MAX12))
+                                  || !strcmp(germline->code.c_str(), PSEUDO_GERMLINE_MAX1U)))
         {
           reversed = kseg->isReverse();