diff --git a/worker/worker.cpp b/worker/worker.cpp
index 507a6d1..444a2bb 100644
--- a/worker/worker.cpp
+++ b/worker/worker.cpp
@@ -7,8 +7,10 @@ QMutex Worker::workerLock;
 
 void Worker::queue(WorkerContext *context) {
     QMutexLocker ml(&lock);
-    context->pixmap = context->pixmap.copy();
-    qqueue.enqueue(context);
+    _WorkerContext *c = new _WorkerContext;
+    c->image = context->pixmap.toImage().convertToFormat(context->targetFormat);
+    c->consumer = context->consumer;
+    qqueue.enqueue(c);
 }
 
 void Worker::init() {
@@ -45,8 +47,8 @@ void Worker::process() {
     while (!ended()) {
         lock.lock();
         if (!qqueue.isEmpty()) {
-            WorkerContext *c = qqueue.dequeue();
-            c->consumer(c->pixmap.toImage().convertToFormat(c->targetFormat));
+            _WorkerContext *c = qqueue.dequeue();
+            c->consumer(c->image);
         }
         lock.unlock();
         std::this_thread::sleep_for(std::chrono::milliseconds(100)); // STL likes it's scopes
diff --git a/worker/worker.hpp b/worker/worker.hpp
index ed7dfc5..69b3bfd 100644
--- a/worker/worker.hpp
+++ b/worker/worker.hpp
@@ -15,6 +15,11 @@ struct WorkerContext {
     std::function<void(QImage)> consumer;
 };
 
+struct _WorkerContext {
+    QImage image;
+    std::function<void(QImage)> consumer;
+};
+
 class Worker : public QObject {
     Q_OBJECT
 public:
@@ -27,7 +32,7 @@ private:
     QMutex lock;
     QMutex endLock;
     QThread *thr;
-    QQueue<WorkerContext *> qqueue; // Say that ten times as fast
+    QQueue<_WorkerContext *> qqueue; // Say that ten times as fast
     bool _ended;
 
     void _queue(WorkerContext *context);