diff --git a/src/plugins/python/pyside.cpp b/src/plugins/python/pyside.cpp
index f16e81af939..f994108cae0 100644
--- a/src/plugins/python/pyside.cpp
+++ b/src/plugins/python/pyside.cpp
@@ -92,15 +92,6 @@ void PySideInstaller::installPyside(const FilePath &python,
     install->run();
 }
 
-void PySideInstaller::changeInterpreter(const QString &interpreterId,
-                                        RunConfiguration *runConfig)
-{
-    if (runConfig) {
-        if (auto aspect = runConfig->aspect<InterpreterAspect>())
-            aspect->setCurrentInterpreter(PythonSettings::interpreter(interpreterId));
-    }
-}
-
 void PySideInstaller::handlePySideMissing(const FilePath &python,
                                           const QString &pySide,
                                           TextEditor::TextDocument *document)
diff --git a/src/plugins/python/pyside.h b/src/plugins/python/pyside.h
index 299a095412a..3b4f99974a5 100644
--- a/src/plugins/python/pyside.h
+++ b/src/plugins/python/pyside.h
@@ -30,7 +30,6 @@ private:
 
     void installPyside(const Utils::FilePath &python,
                        const QString &pySide, TextEditor::TextDocument *document);
-    void changeInterpreter(const QString &interpreterId, ProjectExplorer::RunConfiguration *runConfig);
     void handlePySideMissing(const Utils::FilePath &python,
                              const QString &pySide,
                              TextEditor::TextDocument *document);