diff --git a/visualization/src/pcl_visualizer.cpp b/visualization/src/pcl_visualizer.cpp
index 5f073646ac1..bc9b959c246 100644
--- a/visualization/src/pcl_visualizer.cpp
+++ b/visualization/src/pcl_visualizer.cpp
@@ -4591,10 +4591,12 @@ pcl::visualization::PCLVisualizer::getUniqueCameraFile (int argc, char **argv)
     // Build camera filename
     if (valid)
     {
-      unsigned int digest[5];
+      boost::uuids::detail::sha1::digest_type digest;
       sha1.get_digest (digest);
       sstream << ".";
-      sstream << std::hex << digest[0] << digest[1] << digest[2] << digest[3] << digest[4];
+      for (int i = 0; i < 5; ++i) {
+        sstream << std::hex << *(reinterpret_cast<unsigned int*>(&digest[0]) + i);
+      }
       sstream << ".cam";
     }
   }