diff --git a/Classification/examples/Classification/example_ethz_random_forest.cpp b/Classification/examples/Classification/example_ethz_random_forest.cpp
index 961c63b41ac..f794e796680 100644
--- a/Classification/examples/Classification/example_ethz_random_forest.cpp
+++ b/Classification/examples/Classification/example_ethz_random_forest.cpp
@@ -1,3 +1,8 @@
+#if defined (_MSC_VER) && !defined (_WIN64)
+#pragma warning(disable:4244) // boost::number_distance::distance()
+                              // converts 64 to 32 bits integers
+#endif
+
 #include <cstdlib>
 #include <fstream>
 #include <iostream>
diff --git a/Classification/examples/Classification/example_opencv_random_forest.cpp b/Classification/examples/Classification/example_opencv_random_forest.cpp
index 3f8971389e3..c7ca356c5bb 100644
--- a/Classification/examples/Classification/example_opencv_random_forest.cpp
+++ b/Classification/examples/Classification/example_opencv_random_forest.cpp
@@ -1,3 +1,8 @@
+#if defined (_MSC_VER) && !defined (_WIN64)
+#pragma warning(disable:4244) // boost::number_distance::distance()
+                              // converts 64 to 32 bits integers
+#endif
+
 #include <cstdlib>
 #include <fstream>
 #include <iostream>