diff --git a/CLI/ComputeMeanShapes/computeMean.hxx b/CLI/ComputeMeanShapes/computeMean.hxx
index da0d195..28e1538 100644
--- a/CLI/ComputeMeanShapes/computeMean.hxx
+++ b/CLI/ComputeMeanShapes/computeMean.hxx
@@ -1,5 +1,7 @@
 #include "computeMean.h"
 
+#include <iostream>
+
 
 
 vtkStandardNewMacro(ComputeMean);
diff --git a/CLI/SurfaceFeaturesExtractor/surfacefeaturesextractor.cxx b/CLI/SurfaceFeaturesExtractor/surfacefeaturesextractor.cxx
index e6ba94a..2089ec1 100644
--- a/CLI/SurfaceFeaturesExtractor/surfacefeaturesextractor.cxx
+++ b/CLI/SurfaceFeaturesExtractor/surfacefeaturesextractor.cxx
@@ -4,6 +4,7 @@
 #include <vtkPolyDataReader.h>
 #include <vtkPolyDataWriter.h>
 
+#include <iostream>
 #include <iterator>
 
 
@@ -12,7 +13,7 @@ int main (int argc, char *argv[])
 	PARSE_ARGS;
     
     if(inputMesh.compare("") == 0){
-        cout<<"type --help to learn how to use this program."<<endl;
+        std::cout<<"type --help to learn how to use this program."<<std::endl;
         return 1;
     }
 
diff --git a/CLI/SurfaceFeaturesExtractor/surfacefeaturesextractor.hxx b/CLI/SurfaceFeaturesExtractor/surfacefeaturesextractor.hxx
index f725f64..ef63e13 100644
--- a/CLI/SurfaceFeaturesExtractor/surfacefeaturesextractor.hxx
+++ b/CLI/SurfaceFeaturesExtractor/surfacefeaturesextractor.hxx
@@ -1,5 +1,6 @@
 #include "surfacefeaturesextractor.h"
 #include <vtkDoubleArray.h>
+#include <iostream>
 #include <sstream>
 #include <vtkObjectFactory.h>