diff --git a/src/gui/dialogs/AddTracksDialog.cpp b/src/gui/dialogs/AddTracksDialog.cpp
index 018d42c..2ce70da 100644
--- a/src/gui/dialogs/AddTracksDialog.cpp
+++ b/src/gui/dialogs/AddTracksDialog.cpp
@@ -31,7 +31,7 @@
 #include <kcombobox.h>
 #include <tqvbox.h>
 #include <tqwidget.h>
-#include <kapp.h>
+#include <tdeapplication.h>
 #include <tdeconfig.h>
 
 #include "document/ConfigGroups.h"
diff --git a/src/gui/editors/segment/segmentcanvas/AudioPreviewPainter.cpp b/src/gui/editors/segment/segmentcanvas/AudioPreviewPainter.cpp
index f5ce326..0400f8f 100644
--- a/src/gui/editors/segment/segmentcanvas/AudioPreviewPainter.cpp
+++ b/src/gui/editors/segment/segmentcanvas/AudioPreviewPainter.cpp
@@ -33,9 +33,8 @@
 #include "document/ConfigGroups.h"
 
 #include <tqimage.h>
-#include <tqapplication.h>
 
-#include <kapp.h>
+#include <tdeapplication.h>
 #include <tdeconfig.h>
 
 namespace Rosegarden {
diff --git a/src/gui/kdeext/TDEStartupLogo.cpp b/src/gui/kdeext/TDEStartupLogo.cpp
index 19c2054..eac9e29 100644
--- a/src/gui/kdeext/TDEStartupLogo.cpp
+++ b/src/gui/kdeext/TDEStartupLogo.cpp
@@ -26,7 +26,6 @@
 #include <tqpainter.h>
 #include <tqfontmetrics.h>
 
-#include <kapp.h>
 #include <kstddirs.h>
 #include <tdeconfig.h>
 #include <ktip.h>
diff --git a/src/misc/stableheaders.h b/src/misc/stableheaders.h
index 79e5740..a3cb84a 100644
--- a/src/misc/stableheaders.h
+++ b/src/misc/stableheaders.h
@@ -144,7 +144,6 @@
 #include <tdeaccel.h>
 #include <tdeactioncollection.h>
 #include <tdeaction.h>
-#include <kapp.h>
 #include <tdeapplication.h>
 #include <karrowbutton.h>
 #include <tdecmdlineargs.h>
diff --git a/src/sequencer/RosegardenSequencerApp.h b/src/sequencer/RosegardenSequencerApp.h
index de34218..b3af99c 100644
--- a/src/sequencer/RosegardenSequencerApp.h
+++ b/src/sequencer/RosegardenSequencerApp.h
@@ -35,7 +35,7 @@
 #include <tqstrlist.h>
 
 // include files for KDE 
-#include <kapp.h>
+#include <tdeapplication.h>
 #include <tdemainwindow.h>
 #include <tdeaccel.h>
 
diff --git a/src/sound/AudioFileManager.cpp b/src/sound/AudioFileManager.cpp
index f7bae68..2abb3f8 100644
--- a/src/sound/AudioFileManager.cpp
+++ b/src/sound/AudioFileManager.cpp
@@ -28,8 +28,6 @@
 #include <pthread.h>
 #include <sstream>
 
-
-#include <kapp.h>
 #include <tdelocale.h>
 #include <kprocess.h>
 #include <tdeio/netaccess.h>
diff --git a/src/sound/MidiFile.cpp b/src/sound/MidiFile.cpp
index 7bad77c..12b86aa 100644
--- a/src/sound/MidiFile.cpp
+++ b/src/sound/MidiFile.cpp
@@ -45,8 +45,6 @@
 
 //#define MIDI_DEBUG 1
 
-#include <kapp.h>
-
 namespace Rosegarden
 {
 
diff --git a/src/sound/PeakFile.cpp b/src/sound/PeakFile.cpp
index d11cf35..28db144 100644
--- a/src/sound/PeakFile.cpp
+++ b/src/sound/PeakFile.cpp
@@ -24,7 +24,6 @@
 #include <tqdatetime.h>
 #include <tqstringlist.h>
 #include <tqpalette.h>
-#include <kapp.h>
 
 #include "PeakFile.h"
 #include "AudioFile.h"