diff --git a/Projections/otbConvertCartoToGeoPoint.cxx b/Projections/otbConvertCartoToGeoPoint.cxx
index 1f3638f6696ad5a8a70eb24e550a499347269851..fade80676f0032899320ae1ee5932436dc50a8ec 100644
--- a/Projections/otbConvertCartoToGeoPoint.cxx
+++ b/Projections/otbConvertCartoToGeoPoint.cxx
@@ -62,7 +62,7 @@ int generic_main_carto_geo(TMapProjection* mapProjection, otb::CommandLineArgume
     {
       std::string outputTestFileName = parseResult->GetParameterString("--OTBTesting",0);
 
-      ofstream outputTestFile;
+      std::ofstream outputTestFile;
       outputTestFile.open(outputTestFileName.c_str());
 
       outputTestFile << std::setprecision(10) << "Cartographic Point  (x , y)  : (" << cartoPoint[0] << "," << cartoPoint[1] << ")" << std::endl;