diff --git a/wrap/qt/PolyToQImage.cpp b/wrap/qt/PolyToQImage.cpp
index 5f22f27c..6ecb5329 100644
--- a/wrap/qt/PolyToQImage.cpp
+++ b/wrap/qt/PolyToQImage.cpp
@@ -45,11 +45,14 @@ void dumpPolySet(const char * imageName, vector< vector<Point2f> > &polyVec, vec
     polyVecVec[i].resize(1);
     polyVecVec[i][0]=polyVec[i];
   }
-  vector<string> labelVec(polyVec.size());
-  dumpPolySet(imageName,polyVecVec,trVec,labelVec,pp);
+  dumpPolySet(imageName,polyVecVec,trVec,pp);
 }
 
-
+void dumpPolySet(const char * imageName, vector< vector< vector<Point2f> > > &polyVecVec, vector<Similarity2f> &trVec, PolyDumperParam &pp)
+{
+  vector<string> labelVec(polyVecVec.size());
+  dumpPolySet(imageName,polyVecVec,trVec,labelVec,pp);
+}
 
 void dumpPolySet(const char * imageName, vector< vector< vector<Point2f> > > &polyVecVec, vector<Similarity2f> &trVec, vector<string> &labelVec, PolyDumperParam &pp)
 {
diff --git a/wrap/qt/PolyToQImage.h b/wrap/qt/PolyToQImage.h
index 04fb436a..e12e9001 100644
--- a/wrap/qt/PolyToQImage.h
+++ b/wrap/qt/PolyToQImage.h
@@ -29,8 +29,9 @@ public:
 };
 
   void dumpPolySet(const char * imageName, std::vector< std::vector< std::vector<vcg::Point2f> > > &polyVecVec, std::vector<vcg::Similarity2f> &trVec, std::vector<std::string> &labelVec, PolyDumperParam &pp);
-  void dumpPolySet(const char * imageName, std::vector< std::vector<vcg::Point2f> > &polyVec, std::vector<vcg::Similarity2f> &trVec, PolyDumperParam &pp);
-  void dumpPolySet(const char * imageName, std::vector< std::vector<vcg::Point2f> > &polyVec, PolyDumperParam &pp);
+  void dumpPolySet(const char * imageName, std::vector< std::vector< std::vector<vcg::Point2f> > > &polyVecVec, std::vector<vcg::Similarity2f> &trVec, PolyDumperParam &pp);
+  void dumpPolySet(const char * imageName,              std::vector< std::vector<vcg::Point2f> >   &polyVec,   std::vector<vcg::Similarity2f> &trVec, PolyDumperParam &pp);
+  void dumpPolySet(const char * imageName,              std::vector< std::vector<vcg::Point2f> >   &polyVec,   PolyDumperParam &pp);
   void rectSetToPolySet(std::vector< vcg::Box2f > &rectVec, std::vector< std::vector<vcg::Point2f> > &polyVec);
 
 #endif // POLYTOQIMAGE_H