diff --git a/src/qml/presenter/Presentation.qml b/src/qml/presenter/Presentation.qml
index 93f5671..a467b88 100644
--- a/src/qml/presenter/Presentation.qml
+++ b/src/qml/presenter/Presentation.qml
@@ -151,10 +151,10 @@ Item {
 
     Connections {
         target: SlideObject
-        onVideoBackgroundChanged: {
+        function onVideoBackgroundChanged() {
             loadVideo();
         }
-        onIsPlayingChanged: {
+        function onIsPlayingChanged() {
             if(SlideObject.isPlaying)
                 previewSlide.playVideo();
             pauseVideo();
diff --git a/src/qml/presenter/PresentationWindow.qml b/src/qml/presenter/PresentationWindow.qml
index dbe0200..82d8980 100644
--- a/src/qml/presenter/PresentationWindow.qml
+++ b/src/qml/presenter/PresentationWindow.qml
@@ -38,10 +38,10 @@ Window {
 
     Connections {
         target: SlideObject
-        onVideoBackgroundChanged: {
+        function onVideoBackgroundChanged() {
             loadVideo();
         }
-        onIsPlayingChanged: {
+        function onIsPlayingChanged() {
             if(SlideObject.isPlaying)
                 presentationSlide.playVideo();
             pauseVideo();