1 diff --git a/pdal/PointViewIter.hpp b/pdal/PointViewIter.hpp
2 index 0c387be..ccb0721 100644
3 --- a/pdal/PointViewIter.hpp
4 +++ b/pdal/PointViewIter.hpp
5 @@ -139,7 +139,7 @@ public:
7 bool operator==(const PointViewIter& i)
8 { return m_id == i.m_id; }
9 - bool operator!=(const PointViewIter& i)
10 + bool operator!=(const PointViewIter& i) const
11 { return m_id != i.m_id; }
12 bool operator<=(const PointViewIter& i)
13 { return m_id <= i.m_id; }