diff --git a/gui/common.h b/gui/common.h
index 8eb6e665a..e428c8f74 100644
--- a/gui/common.h
+++ b/gui/common.h
@@ -62,10 +62,10 @@
 #define SETTINGS_STD_CPP03              "Platform CPP03"
 #define SETTINGS_STD_CPP11              "Platform CPP11"
 #define SETTINGS_STD_CPP14              "Platform CPP14"
+#define SETTINGS_STD_CPP17              "Platform CPP17"
 #define SETTINGS_STD_C89                "Platform C89"
 #define SETTINGS_STD_C99                "Platform C99"
 #define SETTINGS_STD_C11                "Platform C11"
-#define SETTINGS_STD_POSIX              "Platform Posix"
 
 // Language enforcement
 #define SETTINGS_ENFORCED_LANGUAGE      "Enforced language"
diff --git a/gui/mainwindow.cpp b/gui/mainwindow.cpp
index cab500312..7e1aa6f67 100644
--- a/gui/mainwindow.cpp
+++ b/gui/mainwindow.cpp
@@ -207,6 +207,7 @@ MainWindow::MainWindow(TranslationHandler* th, QSettings* settings) :
     mUI.mActionCpp03->setActionGroup(mCppStandardActions);
     mUI.mActionCpp11->setActionGroup(mCppStandardActions);
     mUI.mActionCpp14->setActionGroup(mCppStandardActions);
+    mUI.mActionCpp17->setActionGroup(mCppStandardActions);
 
     mUI.mActionEnforceC->setActionGroup(mSelectLanguageActions);
     mUI.mActionEnforceCpp->setActionGroup(mSelectLanguageActions);
@@ -283,18 +284,18 @@ void MainWindow::loadSettings()
 
     const bool stdCpp03 = mSettings->value(SETTINGS_STD_CPP03, false).toBool();
     mUI.mActionCpp03->setChecked(stdCpp03);
-    const bool stdCpp11 = mSettings->value(SETTINGS_STD_CPP11, true).toBool();
+    const bool stdCpp11 = mSettings->value(SETTINGS_STD_CPP11, false).toBool();
     mUI.mActionCpp11->setChecked(stdCpp11 && !stdCpp03);
-    const bool stdCpp14 = mSettings->value(SETTINGS_STD_CPP14, true).toBool();
+    const bool stdCpp14 = mSettings->value(SETTINGS_STD_CPP14, false).toBool();
     mUI.mActionCpp14->setChecked(stdCpp14 && !stdCpp03 && !stdCpp11);
+    const bool stdCpp17 = mSettings->value(SETTINGS_STD_CPP17, true).toBool();
+    mUI.mActionCpp17->setChecked(stdCpp17 && !stdCpp03 && !stdCpp11 && !stdCpp14);
     const bool stdC89 = mSettings->value(SETTINGS_STD_C89, false).toBool();
     mUI.mActionC89->setChecked(stdC89);
     const bool stdC11 = mSettings->value(SETTINGS_STD_C11, false).toBool();
     mUI.mActionC11->setChecked(stdC11);
     const bool stdC99 = mSettings->value(SETTINGS_STD_C99, true).toBool();
     mUI.mActionC99->setChecked(stdC99 || (!stdC89 && !stdC11));
-    const bool stdPosix = mSettings->value(SETTINGS_STD_POSIX, false).toBool();
-    mUI.mActionPosix->setChecked(stdPosix);
 
     // Main window settings
     const bool showMainToolbar = mSettings->value(SETTINGS_TOOLBARS_MAIN_SHOW, true).toBool();
@@ -361,10 +362,10 @@ void MainWindow::saveSettings() const
     mSettings->setValue(SETTINGS_STD_CPP03, mUI.mActionCpp03->isChecked());
     mSettings->setValue(SETTINGS_STD_CPP11, mUI.mActionCpp11->isChecked());
     mSettings->setValue(SETTINGS_STD_CPP14, mUI.mActionCpp14->isChecked());
+    mSettings->setValue(SETTINGS_STD_CPP17, mUI.mActionCpp17->isChecked());
     mSettings->setValue(SETTINGS_STD_C89, mUI.mActionC89->isChecked());
     mSettings->setValue(SETTINGS_STD_C99, mUI.mActionC99->isChecked());
     mSettings->setValue(SETTINGS_STD_C11, mUI.mActionC11->isChecked());
-    mSettings->setValue(SETTINGS_STD_POSIX, mUI.mActionPosix->isChecked());
 
     // Main window settings
     mSettings->setValue(SETTINGS_TOOLBARS_MAIN_SHOW, mUI.mToolBarMain->isVisible());
@@ -829,7 +830,7 @@ Settings MainWindow::getCppcheckSettings()
 
     const bool std = tryLoadLibrary(&result.library, "std.cfg");
     bool posix = true;
-    if (result.standards.posix)
+    if (result.posix())
         posix = tryLoadLibrary(&result.library, "posix.cfg");
     bool windows = true;
     if (result.isWindowsPlatform())
@@ -929,10 +930,11 @@ Settings MainWindow::getCppcheckSettings()
         result.standards.cpp = Standards::CPP03;
     else if (mSettings->value(SETTINGS_STD_CPP11, false).toBool())
         result.standards.cpp = Standards::CPP11;
-    else if (mSettings->value(SETTINGS_STD_CPP14, true).toBool())
+    else if (mSettings->value(SETTINGS_STD_CPP14, false).toBool())
         result.standards.cpp = Standards::CPP14;
+    else if (mSettings->value(SETTINGS_STD_CPP17, true).toBool())
+        result.standards.cpp = Standards::CPP17;
     result.standards.c = mSettings->value(SETTINGS_STD_C99, true).toBool() ? Standards::C99 : (mSettings->value(SETTINGS_STD_C11, false).toBool() ? Standards::C11 : Standards::C89);
-    result.standards.posix = mSettings->value(SETTINGS_STD_POSIX, false).toBool();
     result.enforcedLang = (Settings::Language)mSettings->value(SETTINGS_ENFORCED_LANGUAGE, 0).toInt();
 
     if (result.jobs <= 1) {
diff --git a/gui/mainwindow.ui b/gui/mainwindow.ui
index d61869952..ca0c47c89 100644
--- a/gui/mainwindow.ui
+++ b/gui/mainwindow.ui
@@ -62,7 +62,7 @@
      <x>0</x>
      <y>0</y>
      <width>640</width>
-     <height>25</height>
+     <height>28</height>
     </rect>
    </property>
    <widget class="QMenu" name="mMenuFile">
@@ -137,6 +137,7 @@
      <addaction name="mActionCpp03"/>
      <addaction name="mActionCpp11"/>
      <addaction name="mActionCpp14"/>
+     <addaction name="mActionCpp17"/>
     </widget>
     <widget class="QMenu" name="menuC_standard">
      <property name="title">
@@ -156,7 +157,6 @@
     <addaction name="separator"/>
     <addaction name="menuC_standard"/>
     <addaction name="menuCpp_standard"/>
-    <addaction name="mActionPosix"/>
     <addaction name="separator"/>
     <addaction name="mActionAutoDetectLanguage"/>
     <addaction name="mActionEnforceCpp"/>
@@ -811,6 +811,14 @@
     <string>Check configuration (defines, includes)</string>
    </property>
   </action>
+  <action name="mActionCpp17">
+   <property name="checkable">
+    <bool>true</bool>
+   </property>
+   <property name="text">
+    <string>C++17</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>