diff --git a/vcg/complex/algorithms/parametrization/distortion.h b/vcg/complex/algorithms/parametrization/distortion.h
index d1457644..95a980de 100644
--- a/vcg/complex/algorithms/parametrization/distortion.h
+++ b/vcg/complex/algorithms/parametrization/distortion.h
@@ -413,7 +413,7 @@ public:
     static ScalarType MeshAngleDistortion(const MeshType &m)
     {
         ScalarType UDdist=0;
-        for (int i=0;i<m.face.size();i++)
+        for (size_t i=0;i<m.face.size();i++)
         {
             if (m.face[i].IsD())continue;
             const FaceType *f=&(m.face[i]);
@@ -487,7 +487,7 @@ public:
         ScalarType tot = 0;
         ScalarType totA = 0;
 
-        for (int i=0;i<m.face.size();i++)
+        for (size_t i=0;i<m.face.size();i++)
         {
             if (m.face[i].IsD())continue;
             ScalarType q;
diff --git a/wrap/igl/lscm_parametrization.h b/wrap/igl/lscm_parametrization.h
index 5276fc2e..0a6efd33 100644
--- a/wrap/igl/lscm_parametrization.h
+++ b/wrap/igl/lscm_parametrization.h
@@ -69,7 +69,7 @@ void OptimizeUV_LSCM( MeshType& m ,
     vcg::tri::MeshToMatrix< MeshType >::GetTriMeshData( m, F, V );
 
     // build fixed points data
-    int nFixed = 0;
+    size_t nFixed = 0;
     for (int i=0; i<(int)m.vert.size(); i++) {
         if (m.vert[i].Flags()&fixedMask) nFixed++;
     }