diff --git a/src/gui/UBDocumentNavigator.cpp b/src/gui/UBDocumentNavigator.cpp
index fea695f4..f69c2106 100644
--- a/src/gui/UBDocumentNavigator.cpp
+++ b/src/gui/UBDocumentNavigator.cpp
@@ -161,6 +161,7 @@ void UBDocumentNavigator::updateSpecificThumbnail(int iPage)
                 mScene->removeItem(pItem);
                 mScene->addItem(pixmapItem);
                 mThumbnails.replace(iPage, pixmapItem);
+                delete pItem;
             }
         }
     }