diff --git a/src/thread.cpp b/src/thread.cpp
index a39651de..80057dbe 100644
--- a/src/thread.cpp
+++ b/src/thread.cpp
@@ -147,7 +147,6 @@ void Thread::idle_loop()
         if (exit)
             return;
 
-        emit searchStarted();
         lk.unlock();
 
         // TODO: Stockfish doesn't have this
@@ -179,8 +178,6 @@ void Thread::idle_loop()
 #ifdef OPENING_BOOK
         }
 #endif
-
-        emit searchFinished();
     }
 
     loggerDebug("Thread %d quit\n", us);
@@ -189,15 +186,6 @@ void Thread::idle_loop()
 
 ///////////////
 
-void Thread::act()
-{
-    if (exit|| !searching)
-        return;
-
-    std::lock_guard<std::mutex> lk(mutex);
-    clearHistoryScore();
-}
-
 void Thread::setAi(Position *p)
 {
     std::lock_guard<std::mutex> lk(mutex);
@@ -218,10 +206,12 @@ void Thread::setAi(Position *p, int tl)
     timeLimit = tl;
 }
 
+#ifdef QT_UI
 void Thread::emitCommand()
 {
     emit command(strCommand);
 }
+#endif // QT_UI
 
 #ifdef OPENING_BOOK
 deque<int> openingBookDeque(
diff --git a/src/thread.h b/src/thread.h
index 444574fc..3f14b288 100644
--- a/src/thread.h
+++ b/src/thread.h
@@ -58,6 +58,7 @@ public:
     int search();
     void clear();
     void idle_loop();
+    void start_searching();
     void wait_for_search_finished();
     int best_move_count(Move move) const;
 
@@ -138,21 +139,18 @@ public:
 
     int us;
 
-    Q_OBJECT
-
 private:
     int timeLimit;
 
+    Q_OBJECT
+
+public:
+#ifdef QT_UI
+    void emitCommand();
+#endif // QT_UI
+
 signals:
     void command(const string &cmdline, bool update = true);
-
-    void searchStarted();
-    void searchFinished();
-
-public slots:
-    void act(); // Force move, not quit thread
-    void start_searching();
-    void emitCommand();
 };