diff --git a/src/plugins/projectexplorer/customexecutablerunconfiguration.cpp b/src/plugins/projectexplorer/customexecutablerunconfiguration.cpp
index 1caa79c8fa7..bcf647d11a0 100644
--- a/src/plugins/projectexplorer/customexecutablerunconfiguration.cpp
+++ b/src/plugins/projectexplorer/customexecutablerunconfiguration.cpp
@@ -256,7 +256,7 @@ Runnable CustomExecutableRunConfiguration::runnable() const
             aspect<WorkingDirectoryAspect>()->workingDirectory(macroExpander());
 
     Runnable r;
-    r.executable = aspect<ExecutableAspect>()->executable().toString();
+    r.executable = executable().toString();
     r.commandLineArguments = aspect<ArgumentsAspect>()->arguments(macroExpander());
     r.environment = aspect<EnvironmentAspect>()->environment();
     r.workingDirectory = workingDirectory.toString();
diff --git a/src/plugins/projectexplorer/projectexplorer.cpp b/src/plugins/projectexplorer/projectexplorer.cpp
index 5b3227fabbe..fe788a7d9aa 100644
--- a/src/plugins/projectexplorer/projectexplorer.cpp
+++ b/src/plugins/projectexplorer/projectexplorer.cpp
@@ -1614,14 +1614,8 @@ bool ProjectExplorerPlugin::initialize(const QStringList &arguments, QString *er
         tr("The currently active run configuration's executable (if applicable)."),
         []() -> QString {
             if (Target *target = activeTarget()) {
-                if (RunConfiguration *rc = target->activeRunConfiguration()) {
-                    // TODO: This duplicates code and is not always correct, but see
-                    // QTCREATORBUG-18317.
-                    // Solution: Re-introduce RunConfiguration::executable()?
-                    if (auto executableAspect = rc->aspect<ExecutableAspect>())
-                        return executableAspect->executable().toString();
-                    return QString();
-                }
+                if (RunConfiguration *rc = target->activeRunConfiguration())
+                    return rc->executable().toString();
             }
             return QString();
         });
diff --git a/src/plugins/projectexplorer/runconfiguration.cpp b/src/plugins/projectexplorer/runconfiguration.cpp
index 6163c96dada..f29564de56e 100644
--- a/src/plugins/projectexplorer/runconfiguration.cpp
+++ b/src/plugins/projectexplorer/runconfiguration.cpp
@@ -200,6 +200,12 @@ RunConfiguration::RunConfiguration(Target *target, Core::Id id)
 
     for (const AspectFactory &factory : theAspectFactories)
         m_aspects.append(factory(target));
+
+    m_executableGetter = [this] {
+        if (const auto executableAspect = aspect<ExecutableAspect>())
+            return executableAspect->executable();
+        return FileName();
+    };
 }
 
 RunConfiguration::~RunConfiguration() = default;
@@ -321,6 +327,16 @@ QVariantMap RunConfiguration::toMap() const
     return map;
 }
 
+void RunConfiguration::setExecutableGetter(const RunConfiguration::ExecutableGetter &exeGetter)
+{
+    m_executableGetter = exeGetter;
+}
+
+FileName RunConfiguration::executable() const
+{
+    return m_executableGetter();
+}
+
 BuildTargetInfo RunConfiguration::buildTargetInfo() const
 {
     return target()->buildTarget(m_buildKey);
@@ -376,8 +392,7 @@ bool RunConfiguration::fromMap(const QVariantMap &map)
 Runnable RunConfiguration::runnable() const
 {
     Runnable r;
-    if (auto executableAspect = aspect<ExecutableAspect>())
-        r.executable = executableAspect->executable().toString();
+    r.executable = executable().toString();
     if (auto argumentsAspect = aspect<ArgumentsAspect>())
         r.commandLineArguments = argumentsAspect->arguments(macroExpander());
     if (auto workingDirectoryAspect = aspect<WorkingDirectoryAspect>())
diff --git a/src/plugins/projectexplorer/runconfiguration.h b/src/plugins/projectexplorer/runconfiguration.h
index a1a8440ee69..77b9846471b 100644
--- a/src/plugins/projectexplorer/runconfiguration.h
+++ b/src/plugins/projectexplorer/runconfiguration.h
@@ -160,6 +160,10 @@ public:
     bool fromMap(const QVariantMap &map) override;
     QVariantMap toMap() const override;
 
+    using ExecutableGetter = std::function<Utils::FileName()>;
+    void setExecutableGetter(const ExecutableGetter &exeGetter);
+    Utils::FileName executable() const;
+
     virtual Runnable runnable() const;
 
     // Return a handle to the build system target that created this run configuration.
@@ -210,6 +214,7 @@ private:
     QString m_buildKey;
     bool m_isEnabled = false;
     std::function<Utils::OutputFormatter *(Project *)> m_outputFormatterCreator;
+    ExecutableGetter m_executableGetter;
 };
 
 class RunConfigurationCreationInfo
diff --git a/src/plugins/pythoneditor/pythoneditorplugin.cpp b/src/plugins/pythoneditor/pythoneditorplugin.cpp
index 1448546cbdd..fe5c7189dca 100644
--- a/src/plugins/pythoneditor/pythoneditorplugin.cpp
+++ b/src/plugins/pythoneditor/pythoneditorplugin.cpp
@@ -279,6 +279,9 @@ PythonRunConfiguration::PythonRunConfiguration(Target *target, Core::Id id)
     addAspect<TerminalAspect>();
 
     setOutputFormatter<PythonOutputFormatter>();
+    setExecutableGetter([this] {
+        return FileName::fromString(aspect<InterpreterAspect>()->value());
+    });
 
     connect(target, &Target::applicationTargetsChanged,
             this, &PythonRunConfiguration::updateTargetInformation);
@@ -300,7 +303,7 @@ Runnable PythonRunConfiguration::runnable() const
     QtcProcess::addArg(&r.commandLineArguments, mainScript());
     QtcProcess::addArgs(&r.commandLineArguments,
                         aspect<ArgumentsAspect>()->arguments(macroExpander()));
-    r.executable = aspect<InterpreterAspect>()->value();
+    r.executable = executable().toString();
     r.environment = aspect<EnvironmentAspect>()->environment();
     return r;
 }
diff --git a/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.cpp b/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.cpp
index 5c2f5128220..fa4625c535a 100644
--- a/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.cpp
+++ b/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.cpp
@@ -298,9 +298,11 @@ QmlProjectRunConfiguration::QmlProjectRunConfiguration(Target *target, Id id)
         return envModifier(Environment());
     });
 
+    setExecutableGetter([this] { return FileName::fromString(theExecutable()); });
+
     m_qmlViewerAspect = addAspect<BaseStringAspect>();
     m_qmlViewerAspect->setLabelText(tr("QML Viewer:"));
-    m_qmlViewerAspect->setPlaceHolderText(executable());
+    m_qmlViewerAspect->setPlaceHolderText(executable().toString());
     m_qmlViewerAspect->setDisplayStyle(BaseStringAspect::LineEditDisplay);
     m_qmlViewerAspect->setHistoryCompleter("QmlProjectManager.viewer.history");
 
@@ -314,7 +316,6 @@ QmlProjectRunConfiguration::QmlProjectRunConfiguration(Target *target, Id id)
             this, &QmlProjectRunConfiguration::updateEnabledState);
 
     setOutputFormatter<QtSupport::QtOutputFormatter>();
-
     connect(target, &Target::kitChanged,
             this, &QmlProjectRunConfiguration::updateEnabledState);
 
@@ -325,7 +326,7 @@ QmlProjectRunConfiguration::QmlProjectRunConfiguration(Target *target, Id id)
 Runnable QmlProjectRunConfiguration::runnable() const
 {
     Runnable r;
-    r.executable = executable();
+    r.executable = executable().toString();
     r.commandLineArguments = commandLineArguments();
     r.environment = aspect<EnvironmentAspect>()->environment();
     r.workingDirectory = static_cast<QmlProject *>(project())->targetDirectory(target()).toString();
@@ -338,7 +339,7 @@ QString QmlProjectRunConfiguration::disabledReason() const
         return tr("No script file to execute.");
     if (DeviceTypeKitAspect::deviceTypeId(target()->kit())
             == ProjectExplorer::Constants::DESKTOP_DEVICE_TYPE
-            && !QFileInfo::exists(executable())) {
+            && !executable().exists()) {
         return tr("No qmlscene found.");
     }
     if (executable().isEmpty())
@@ -346,7 +347,7 @@ QString QmlProjectRunConfiguration::disabledReason() const
     return RunConfiguration::disabledReason();
 }
 
-QString QmlProjectRunConfiguration::executable() const
+QString QmlProjectRunConfiguration::theExecutable() const
 {
     const QString qmlViewer = m_qmlViewerAspect->value();
     if (!qmlViewer.isEmpty())
diff --git a/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.h b/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.h
index adfd3103a78..8a18fd0ef97 100644
--- a/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.h
+++ b/src/plugins/qmlprojectmanager/qmlprojectrunconfiguration.h
@@ -47,7 +47,7 @@ private:
     void updateEnabledState() final;
 
     QString mainScript() const;
-    QString executable() const;
+    QString theExecutable() const;
     QString commandLineArguments() const;
 
     ProjectExplorer::BaseStringAspect *m_qmlViewerAspect;