diff --git a/src/qml/presenter/Library.qml b/src/qml/presenter/Library.qml
index d7e7a24..922bd3a 100644
--- a/src/qml/presenter/Library.qml
+++ b/src/qml/presenter/Library.qml
@@ -843,7 +843,7 @@ Item {
                                 onActiveChanged: {
                                     if (presDragHandler.drag.active) {
                                         dragItemTitle = title;
-                                        dragItemType = "pres";
+                                        dragItemType = "presentation";
                                         dragItemText = "";
                                         dragItemBackgroundType = "image";
                                         dragItemBackground = filePath;
diff --git a/src/slide.cpp b/src/slide.cpp
index 2c218b8..348d587 100644
--- a/src/slide.cpp
+++ b/src/slide.cpp
@@ -217,7 +217,7 @@ void Slide::changeSlide(QVariantMap item)
   m_slideSize = 1;
   m_slideIndex = 1;
 
-  if (type() == "pres") {
+  if (type() == "presentation") {
     qDebug() << "#$#$#$#$ THIS PDF $#$#$#$#";
     int pageCount;
     QString str = imageBackground().remove(0,6);
@@ -273,7 +273,7 @@ bool Slide::next(QVariantMap nextItem)
     m_slideIndex++;
   }
 
-  if (m_type == "pres") {
+  if (m_type == "presentation") {
     qDebug() << "prev slide index: " << m_pdfIndex;
     setPdfIndex(m_pdfIndex + 1);
     qDebug() << "new slide index: " << m_pdfIndex;