diff --git a/app/mainwindow.cpp b/app/mainwindow.cpp
--- a/app/mainwindow.cpp
+++ b/app/mainwindow.cpp
@@ -408,15 +408,13 @@
         mGoToPreviousAction->setIcon(QIcon::fromTheme("media-skip-backward"));
         mGoToPreviousAction->setText(i18nc("@action Go to previous image", "Previous"));
         mGoToPreviousAction->setToolTip(i18nc("@info:tooltip", "Go to previous image"));
-        actionCollection->setDefaultShortcut(mGoToPreviousAction, Qt::Key_Backspace);
         installDisabledActionShortcutMonitor(mGoToPreviousAction, SLOT(showFirstDocumentReached()));
 
         mGoToNextAction = view->addAction("go_next", q, SLOT(goToNext()));
         mGoToNextAction->setPriority(QAction::LowPriority);
         mGoToNextAction->setIcon(QIcon::fromTheme("media-skip-forward"));
         mGoToNextAction->setText(i18nc("@action Go to next image", "Next"));
         mGoToNextAction->setToolTip(i18nc("@info:tooltip", "Go to next image"));
-        actionCollection->setDefaultShortcut(mGoToNextAction, Qt::Key_Space);
         installDisabledActionShortcutMonitor(mGoToNextAction, SLOT(showLastDocumentReached()));
 
         mGoToFirstAction = view->addAction("go_first", q, SLOT(goToFirst()));
@@ -453,6 +451,7 @@
                 mToggleSideBarAction, SLOT(trigger()));
 
         mToggleSlideShowAction = view->addAction("toggle_slideshow", q, SLOT(toggleSlideShow()));
+        actionCollection->setDefaultShortcut(mToggleSlideShowAction, Qt::Key_Space);
         q->updateSlideShowAction();
         connect(mSlideShow, SIGNAL(stateChanged(bool)),
                 q, SLOT(updateSlideShowAction()));