diff --git a/Gui/EditScriptDialog.cpp b/Gui/EditScriptDialog.cpp
index 6d3784a0d6..83351d080e 100644
--- a/Gui/EditScriptDialog.cpp
+++ b/Gui/EditScriptDialog.cpp
@@ -230,7 +230,11 @@ EditScriptDialog::create(const QString& initialScript,
         _imp->resultEdit->setFont(font);
     }
     QFontMetrics fm = _imp->expressionEdit->fontMetrics();
+#if QT_VERSION >= QT_VERSION_CHECK(5, 11, 0)
+    _imp->expressionEdit->setTabStopDistance( 4 * fm.horizontalAdvance( QLatin1Char(' ') ) );
+#else
     _imp->expressionEdit->setTabStopWidth( 4 * fm.width( QLatin1Char(' ') ) );
+#endif
 } // EditScriptDialog::create
 
 void
diff --git a/Gui/KnobGuiString.cpp b/Gui/KnobGuiString.cpp
index 990ad20075..b85d9b5643 100644
--- a/Gui/KnobGuiString.cpp
+++ b/Gui/KnobGuiString.cpp
@@ -96,7 +96,11 @@ AnimatingTextEdit::AnimatingTextEdit(const KnobGuiPtr& knob,
     , dirty(false)
     , _dnd( KnobWidgetDnD::create(knob, dimension, this) )
 {
+#if QT_VERSION >= QT_VERSION_CHECK(5, 10, 0)
+    setTabStopDistance(20);
+#else
     setTabStopWidth(20); // a tab width of 20 is more reasonable than 80 for programming languages (e.g. Shadertoy)
+#endif
 }
 
 AnimatingTextEdit::~AnimatingTextEdit()
diff --git a/Gui/ScriptEditor.cpp b/Gui/ScriptEditor.cpp
index 551bf9bdad..2c8dc58004 100644
--- a/Gui/ScriptEditor.cpp
+++ b/Gui/ScriptEditor.cpp
@@ -249,8 +249,13 @@ ScriptEditor::ScriptEditor(Gui* gui)
     _imp->inputEdit = new InputScriptTextEdit(gui, this);
     QObject::connect( _imp->inputEdit, SIGNAL(textChanged()), this, SLOT(onInputScriptTextChanged()) );
     QFontMetrics fm = _imp->inputEdit->fontMetrics();
+#if QT_VERSION >= QT_VERSION_CHECK(5, 11, 0)
+    _imp->inputEdit->setTabStopDistance(fm.horizontalAdvance( QLatin1Char(' ') ) * 4);
+    _imp->outputEdit->setTabStopDistance(fm.horizontalAdvance( QLatin1Char(' ') ) * 4);
+#else
     _imp->inputEdit->setTabStopWidth(fm.width( QLatin1Char(' ') ) * 4);
     _imp->outputEdit->setTabStopWidth(fm.width( QLatin1Char(' ') ) * 4);
+#endif
 
     _imp->mainLayout->addWidget(_imp->buttonsContainer);
     splitter->addWidget(_imp->outputEdit);