diff --git a/src/plugins/android/androiddebugsupport.cpp b/src/plugins/android/androiddebugsupport.cpp
index 61b74e891f1..a9f430d43eb 100644
--- a/src/plugins/android/androiddebugsupport.cpp
+++ b/src/plugins/android/androiddebugsupport.cpp
@@ -152,7 +152,7 @@ public:
                                             << runControl->qmlChannel().toDisplayString();
             //TODO: Not sure if these are the right paths.
             if (qtVersion)
-                addSearchDirectory(qtVersion->qmlPath());
+                rp.addSearchDirectory(qtVersion->qmlPath());
         }
         connect(this, &RunWorker::started, this, [this, packageName] {
             qCDebug(androidDebugSupportLog) << "Starting debugger - package name: " << packageName
diff --git a/src/plugins/debugger/debuggerengine.cpp b/src/plugins/debugger/debuggerengine.cpp
index 6d5b09dfd26..72de7617234 100644
--- a/src/plugins/debugger/debuggerengine.cpp
+++ b/src/plugins/debugger/debuggerengine.cpp
@@ -2919,7 +2919,7 @@ QString DebuggerEngine::formatStartParameters() const
     if (!sp.projectSourceDirectory.isEmpty()) {
         str << "Project: " << sp.projectSourceDirectory.toUserOutput() << '\n';
         str << "Additional Search Directories:";
-        for (const FilePath &dir : sp.additionalSearchDirectories)
+        for (const FilePath &dir : sp.additionalSearchDirectories())
             str << ' ' << dir;
         str << '\n';
     }
diff --git a/src/plugins/debugger/debuggerengine.h b/src/plugins/debugger/debuggerengine.h
index 4a3b14500a3..0d6fe86fa5a 100644
--- a/src/plugins/debugger/debuggerengine.h
+++ b/src/plugins/debugger/debuggerengine.h
@@ -147,7 +147,8 @@ public:
     void setUseTargetAsync(bool on) { m_useTargetAsync = on; }
     bool useTargetAsync() const { return m_useTargetAsync; }
 
-    Utils::FilePaths additionalSearchDirectories;
+    void addSearchDirectory(const Utils::FilePath &dir) { m_additionalSearchDirectories.append(dir); }
+    Utils::FilePaths additionalSearchDirectories() const { return m_additionalSearchDirectories; }
 
     // Used by iOS.
     QString platform;
@@ -250,6 +251,8 @@ private:
     bool m_useCtrlCStub = false; // For QNX debugging.
 
     bool m_useTargetAsync = false;
+
+    Utils::FilePaths m_additionalSearchDirectories;
 };
 
 namespace Internal {
diff --git a/src/plugins/debugger/debuggerruncontrol.cpp b/src/plugins/debugger/debuggerruncontrol.cpp
index 3bdd652f1be..d1359a1280d 100644
--- a/src/plugins/debugger/debuggerruncontrol.cpp
+++ b/src/plugins/debugger/debuggerruncontrol.cpp
@@ -189,11 +189,6 @@ void DebuggerRunTool::setCrashParameter(const QString &event)
     m_runParameters.crashParameter = event;
 }
 
-void DebuggerRunTool::addSearchDirectory(const Utils::FilePath &dir)
-{
-    m_runParameters.additionalSearchDirectories.append(dir);
-}
-
 void DebuggerRunTool::start()
 {
     startCoreFileSetupIfNeededAndContinueStartup();
diff --git a/src/plugins/debugger/debuggerruncontrol.h b/src/plugins/debugger/debuggerruncontrol.h
index cbdcc90ebbd..1139e682351 100644
--- a/src/plugins/debugger/debuggerruncontrol.h
+++ b/src/plugins/debugger/debuggerruncontrol.h
@@ -62,7 +62,6 @@ public:
     void setUsePortsGatherer(bool useCpp, bool useQml);
 
     void modifyDebuggerEnvironment(const Utils::EnvironmentItems &item);
-    void addSearchDirectory(const Utils::FilePath &dir);
 
     void setIosPlatform(const QString &platform);
     void setDeviceSymbolsRoot(const QString &deviceSymbolsRoot);
diff --git a/src/plugins/debugger/qml/qmlengine.cpp b/src/plugins/debugger/qml/qmlengine.cpp
index 99c24198651..abea227c1a2 100644
--- a/src/plugins/debugger/qml/qmlengine.cpp
+++ b/src/plugins/debugger/qml/qmlengine.cpp
@@ -2451,7 +2451,7 @@ FilePath QmlEngine::toFileInProject(const QUrl &fileUrl)
     const DebuggerRunParameters &rp = runParameters();
     d->fileFinder.setProjectDirectory(rp.projectSourceDirectory);
     d->fileFinder.setProjectFiles(rp.projectSourceFiles);
-    d->fileFinder.setAdditionalSearchDirectories(rp.additionalSearchDirectories);
+    d->fileFinder.setAdditionalSearchDirectories(rp.additionalSearchDirectories());
     d->fileFinder.setSysroot(rp.sysRoot);
 
     return d->fileFinder.findFile(fileUrl).constFirst();
diff --git a/src/plugins/qtapplicationmanager/appmanagerruncontrol.cpp b/src/plugins/qtapplicationmanager/appmanagerruncontrol.cpp
index 1f0f5115d21..d7260e8543b 100644
--- a/src/plugins/qtapplicationmanager/appmanagerruncontrol.cpp
+++ b/src/plugins/qtapplicationmanager/appmanagerruncontrol.cpp
@@ -169,7 +169,7 @@ private:
             QtSupport::QtVersion *version = QtSupport::QtKitAspect::qtVersion(runControl()->kit());
             if (version) {
                 rp.setSolibSearchPath(version->qtSoPaths());
-                addSearchDirectory(version->qmlPath());
+                rp.addSearchDirectory(version->qmlPath());
             }
 
             auto sysroot = SysRootKitAspect().sysRoot(runControl()->kit());