diff --git a/Polyhedron/demo/Polyhedron/Scene_points_with_normal_item.cpp b/Polyhedron/demo/Polyhedron/Scene_points_with_normal_item.cpp
index 96c5d208199..68b55bb7b56 100644
--- a/Polyhedron/demo/Polyhedron/Scene_points_with_normal_item.cpp
+++ b/Polyhedron/demo/Polyhedron/Scene_points_with_normal_item.cpp
@@ -172,7 +172,7 @@ Scene_points_with_normal_item::Scene_points_with_normal_item(const Scene_points_
     d->point_Slider->setValue(5);
   else
     d->point_Slider->setValue(2);
-    invalidateOpenGLBuffers();
+  invalidateOpenGLBuffers();
 }
 
 // Converts polyhedron to point set
diff --git a/Polyhedron/demo/Polyhedron/Viewer.cpp b/Polyhedron/demo/Polyhedron/Viewer.cpp
index 61785e20262..3193e9978cd 100644
--- a/Polyhedron/demo/Polyhedron/Viewer.cpp
+++ b/Polyhedron/demo/Polyhedron/Viewer.cpp
@@ -1809,7 +1809,7 @@ void Viewer_impl::drawGrid(qreal size, int nbSubdivisions)
   rendering_program_dist.bind();
   vao[2].bind();
   buffers[4].bind();
-  buffers[4].allocate(v_Grid.data(),v_Grid.size()*sizeof(float));
+  buffers[4].allocate(v_Grid.data(),static_cast<int>(v_Grid.size()*sizeof(float)));
   rendering_program_dist.enableAttributeArray("vertex");
   rendering_program_dist.setAttributeBuffer("vertex",GL_FLOAT,0,3);
   buffers[4].release();