diff --git a/renamingutility/renamingengine.cpp b/renamingutility/renamingengine.cpp
index cb1dd37..226be8f 100644
--- a/renamingutility/renamingengine.cpp
+++ b/renamingutility/renamingengine.cpp
@@ -36,6 +36,17 @@ RenamingEngine::RenamingEngine(QObject *parent)
     connect(this, &RenamingEngine::changingsApplied, this, &RenamingEngine::processChangingsApplied);
 }
 
+RenamingEngine::~RenamingEngine()
+{
+#ifndef TAGEDITOR_NO_JSENGINE
+    for (auto *const child : children()) {
+        if (auto *const childThread = qobject_cast<QThread *>(child)) {
+            childThread->wait();
+        }
+    }
+#endif
+}
+
 #ifndef TAGEDITOR_NO_JSENGINE
 bool RenamingEngine::setProgram(const TAGEDITOR_JS_VALUE &program)
 {
diff --git a/renamingutility/renamingengine.h b/renamingutility/renamingengine.h
index af2dfee..3290d8d 100644
--- a/renamingutility/renamingengine.h
+++ b/renamingutility/renamingengine.h
@@ -56,6 +56,7 @@ class RenamingEngine : public QObject {
 
 public:
     explicit RenamingEngine(QObject *parent = nullptr);
+    ~RenamingEngine() override;
 
     FileSystemItem *rootItem() const;
 #ifndef TAGEDITOR_NO_JSENGINE