diff --git a/io/include/pcl/io/impl/pcd_io.hpp b/io/include/pcl/io/impl/pcd_io.hpp
index 0bafadd0aa8..c0630935408 100644
--- a/io/include/pcl/io/impl/pcd_io.hpp
+++ b/io/include/pcl/io/impl/pcd_io.hpp
@@ -351,11 +351,11 @@ pcl::PCDWriter::writeBinaryCompressed (const std::string &file_name,
   //   pters[3] = &only_valid_data[offset_of_plane_RGB];
   //
   std::vector<char*> pters (fields.size ());
-  int toff = 0;
+  size_t toff = 0;
   for (size_t i = 0; i < pters.size (); ++i)
   {
     pters[i] = &only_valid_data[toff];
-    toff += fields_sizes[i] * static_cast<int> (cloud.points.size ());
+    toff += static_cast<size_t>(fields_sizes[i]) * cloud.points.size();
   }
   
   // Go over all the points, and copy the data in the appropriate places