diff --git a/src/gui/components/cc_timer.cpp b/src/gui/components/cc_timer.cpp
index f7cbfa4ad..129f19dbc 100644
--- a/src/gui/components/cc_timer.cpp
+++ b/src/gui/components/cc_timer.cpp
@@ -83,8 +83,10 @@ bool CComponentsTimer::startTimer()
 			return false;
 		}
 		if (res == 0){
-			dprintf(DEBUG_INFO,"\033[33m[CComponentsTimer] [%s - %d]  timer thread [%lu] created with interval = %d\033[0m\n", __func__,  __LINE__, pthread_self(), tm_interval);
-			CNeutrinoApp::getInstance()->OnBeforeRestart.connect(sl);
+			if (!sl.empty()){
+				dprintf(DEBUG_INFO,"\033[33m[CComponentsTimer] [%s - %d]  timer thread [%lu] created with interval = %d\033[0m\n", __func__,  __LINE__, pthread_self(), tm_interval);
+				CNeutrinoApp::getInstance()->OnBeforeRestart.connect(sl);
+			}
 		}else{
 			dprintf(DEBUG_NORMAL, "\033[33m[CComponentsTimer] [%s - %d] ERROR! pthread_create\033[0m\n", __func__, __LINE__);
 		}
@@ -107,9 +109,12 @@ bool CComponentsTimer::stopTimer()
 
 		if (thres == 0){
 			tm_thread = 0;
+			dprintf(DEBUG_INFO,"\033[33m[CComponentsTimer] [%s] timer thread terminated ...\033[0m\n", __func__);
 			//ensure disconnect of unused slot
-			sl.disconnect();
-			dprintf(DEBUG_INFO,"\033[33m[CComponentsTimer]    [%s] timer thread terminated ...\033[0m\n", __func__);
+			if (!sl.empty()){
+				dprintf(DEBUG_INFO,"\033[33m[CComponentsTimer][%s] disconnect timer slot ...\033[0m\n", __func__);
+				sl.disconnect();
+			}
 			return true;
 		}
 	}