diff --git a/SessionCreator.cpp b/SessionCreator.cpp
index 1ea1a14..d6ca723 100644
--- a/SessionCreator.cpp
+++ b/SessionCreator.cpp
@@ -121,7 +121,7 @@ SessionLoader::SessionLoader(Session *session, int recursion): Visitor(),
     session_(session), xmlCurrent_(nullptr), recursion_(recursion)
 {
     // impose C locale
-    std::setlocale(LC_ALL, "C");
+    setlocale(LC_ALL, "C");
 }
 
 
diff --git a/SessionVisitor.cpp b/SessionVisitor.cpp
index a9ef63a..56d66b1 100644
--- a/SessionVisitor.cpp
+++ b/SessionVisitor.cpp
@@ -27,7 +27,7 @@ using namespace tinyxml2;
 bool SessionVisitor::saveSession(const std::string& filename, Session *session)
 {
     // impose C locale
-    std::setlocale(LC_ALL, "C");
+    setlocale(LC_ALL, "C");
 
     // creation of XML doc
     XMLDocument xmlDoc;
@@ -82,7 +82,7 @@ SessionVisitor::SessionVisitor(tinyxml2::XMLDocument *doc,
                                bool recursive) : Visitor(), recursive_(recursive), xmlCurrent_(root)
 {    
     // impose C locale
-    std::setlocale(LC_ALL, "C");
+    setlocale(LC_ALL, "C");
 
     if (doc == nullptr)
         xmlDoc_ = new XMLDocument;
diff --git a/Settings.cpp b/Settings.cpp
index cd57d41..477e320 100644
--- a/Settings.cpp
+++ b/Settings.cpp
@@ -19,7 +19,7 @@ static string settingsFilename = "";
 void Settings::Save()
 {
     // impose C locale for all app
-    std::setlocale(LC_ALL, "C");
+    setlocale(LC_ALL, "C");
 
     XMLDocument xmlDoc;
     XMLDeclaration *pDec = xmlDoc.NewDeclaration();
@@ -221,7 +221,7 @@ void Settings::Save()
 void Settings::Load()
 {
     // impose C locale for all app
-    std::setlocale(LC_ALL, "C");
+    setlocale(LC_ALL, "C");
 
     XMLDocument xmlDoc;
     if (settingsFilename.empty())