diff --git a/avogadro/molequeue/inputgenerator.cpp b/avogadro/molequeue/inputgenerator.cpp
index 448da3115f..8f01f87317 100644
--- a/avogadro/molequeue/inputgenerator.cpp
+++ b/avogadro/molequeue/inputgenerator.cpp
@@ -118,7 +118,7 @@ void InputGenerator::setScriptFilePath(const QString& scriptFile)
 
 void InputGenerator::reset()
 {
-  m_interpreter->setDefaultPythonInterpretor();
+  m_interpreter->setDefaultPythonInterpreter();
   m_interpreter->setScriptFilePath(QString());
   m_moleculeExtension = "Unknown";
   m_displayName = QString();
diff --git a/avogadro/molequeue/inputgenerator.h b/avogadro/molequeue/inputgenerator.h
index 2b4a8d2f30..94e808c31f 100644
--- a/avogadro/molequeue/inputgenerator.h
+++ b/avogadro/molequeue/inputgenerator.h
@@ -592,7 +592,7 @@ public slots:
 private:
   QtGui::PythonScript* m_interpreter;
 
-  void setDefaultPythonInterpretor();
+  void setDefaultPythonInterpreter();
   QByteArray execute(const QStringList& args,
                      const QByteArray& scriptStdin = QByteArray()) const;
   bool parseJson(const QByteArray& json, QJsonDocument& doc) const;
diff --git a/avogadro/qtgui/interfacescript.cpp b/avogadro/qtgui/interfacescript.cpp
index 88195882fd..dfce9ab7ac 100644
--- a/avogadro/qtgui/interfacescript.cpp
+++ b/avogadro/qtgui/interfacescript.cpp
@@ -136,7 +136,7 @@ void InterfaceScript::setScriptFilePath(const QString& scriptFile)
 
 void InterfaceScript::reset()
 {
-  m_interpreter->setDefaultPythonInterpretor();
+  m_interpreter->setDefaultPythonInterpreter();
   m_interpreter->setScriptFilePath(QString());
   m_moleculeExtension = QLatin1String("Unknown");
   m_displayName = QString();
diff --git a/avogadro/qtgui/interfacescript.h b/avogadro/qtgui/interfacescript.h
index 2690d8b122..63fc384896 100644
--- a/avogadro/qtgui/interfacescript.h
+++ b/avogadro/qtgui/interfacescript.h
@@ -625,7 +625,7 @@ public slots:
 private:
   QtGui::PythonScript* m_interpreter;
 
-  void setDefaultPythonInterpretor();
+  void setDefaultPythonInterpreter();
   QByteArray execute(const QStringList& args,
                      const QByteArray& scriptStdin = QByteArray()) const;
   bool parseJson(const QByteArray& json, QJsonDocument& doc) const;
diff --git a/avogadro/qtgui/pythonscript.cpp b/avogadro/qtgui/pythonscript.cpp
index 56896fbdc2..2a8393ec10 100644
--- a/avogadro/qtgui/pythonscript.cpp
+++ b/avogadro/qtgui/pythonscript.cpp
@@ -20,14 +20,14 @@ PythonScript::PythonScript(const QString& scriptFilePath_, QObject* parent_)
   : QObject(parent_), m_debug(!qgetenv("AVO_PYTHON_SCRIPT_DEBUG").isEmpty()),
     m_scriptFilePath(scriptFilePath_), m_process(nullptr)
 {
-  setDefaultPythonInterpretor();
+  setDefaultPythonInterpreter();
 }
 
 PythonScript::PythonScript(QObject* parent_)
   : QObject(parent_), m_debug(!qgetenv("AVO_PYTHON_SCRIPT_DEBUG").isEmpty()),
     m_process(nullptr)
 {
-  setDefaultPythonInterpretor();
+  setDefaultPythonInterpreter();
 }
 
 PythonScript::~PythonScript() {}
@@ -37,7 +37,7 @@ void PythonScript::setScriptFilePath(const QString& scriptFile)
   m_scriptFilePath = scriptFile;
 }
 
-void PythonScript::setDefaultPythonInterpretor()
+void PythonScript::setDefaultPythonInterpreter()
 {
   if (m_pythonInterpreter.isEmpty()) {
     m_pythonInterpreter =
diff --git a/avogadro/qtgui/pythonscript.h b/avogadro/qtgui/pythonscript.h
index 5e50ed990c..8650003705 100644
--- a/avogadro/qtgui/pythonscript.h
+++ b/avogadro/qtgui/pythonscript.h
@@ -77,7 +77,7 @@ class AVOGADROQTGUI_EXPORT PythonScript : public QObject
    * - The "interpreters/python" QSettings value
    * - The path specified in avogadropython.h.
    */
-  void setDefaultPythonInterpretor();
+  void setDefaultPythonInterpreter();
 
   /**
    * Start a new process to execute: