diff --git a/src/gui/UBTeacherGuideWidget.cpp b/src/gui/UBTeacherGuideWidget.cpp
index 679da6a8..09031a0c 100644
--- a/src/gui/UBTeacherGuideWidget.cpp
+++ b/src/gui/UBTeacherGuideWidget.cpp
@@ -163,7 +163,8 @@ UBTeacherGuideEditionWidget::~UBTeacherGuideEditionWidget()
 void UBTeacherGuideEditionWidget::onSliderMoved(int size)
 {
     Q_UNUSED(size);
-    mpAddAMediaItem->setExpanded(true);
+    if(mpAddAMediaItem)
+        mpAddAMediaItem->setExpanded(true);
 }
 #endif
 void UBTeacherGuideEditionWidget::showEvent(QShowEvent* event)
@@ -491,7 +492,8 @@ UBTeacherGuidePresentationWidget::~UBTeacherGuidePresentationWidget()
 void UBTeacherGuidePresentationWidget::onSliderMoved(int size)
 {
     Q_UNUSED(size);
-    mpMediaSwitchItem->setExpanded(true);
+    if(mpMediaSwitchItem)
+        mpMediaSwitchItem->setExpanded(true);
 }
 #endif
 
diff --git a/src/web/UBWebController.cpp b/src/web/UBWebController.cpp
index 9ad0861e..e9d55be2 100644
--- a/src/web/UBWebController.cpp
+++ b/src/web/UBWebController.cpp
@@ -733,8 +733,8 @@ bool UBWebController::isEduMedia(const QUrl& pUrl)
 
 void UBWebController::loadUrl(const QUrl& url)
 {
-	bool webBrowserAlreadyInstanciated = dynamic_cast<WBBrowserWindow*>(mStackedWidget->widget(WebBrowser)) != NULL;
-	UBApplication::applicationController->showInternet();
+    bool webBrowserAlreadyInstanciated = dynamic_cast<WBBrowserWindow*>(mStackedWidget->widget(WebBrowser)) != NULL;
+    UBApplication::applicationController->showInternet();
     if (UBSettings::settings()->webUseExternalBrowser->get().toBool())
     {
         QDesktopServices::openUrl(url);