diff --git a/acinclude.m4 b/acinclude.m4
index a844011..5ead3b1 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -1104,7 +1104,7 @@ EOF
 
 if test $kde_qtsubver -gt 0; then
 cat >> conftest.$ac_ext <<EOF
-#if QT_VERSION < 210
+#if TQT_VERSION < 210
 #error 1
 #endif
 EOF
@@ -1201,22 +1201,22 @@ fi
 if test -z "$3"; then
    if test $kde_qtver = 3; then
      if test $kde_qtsubver -gt 0; then
-       kde_qt_verstring="QT_VERSION >= 0x03@VER@00 && QT_VERSION < 0x040000"
+       kde_qt_verstring="TQT_VERSION >= 0x03@VER@00 && TQT_VERSION < 0x040000"
        qtsubver=`echo "00$kde_qtsubver" | sed -e 's,.*\(..\)$,\1,'`
        kde_qt_verstring=`echo $kde_qt_verstring | sed -e "s,@VER@,$qtsubver,"`
      else
-       kde_qt_verstring="QT_VERSION >= 300 && QT_VERSION < 0x040000"
+       kde_qt_verstring="TQT_VERSION >= 300 && TQT_VERSION < 0x040000"
      fi
    fi
    if test $kde_qtver = 2; then
      if test $kde_qtsubver -gt 0; then
-       kde_qt_verstring="QT_VERSION >= 222"
+       kde_qt_verstring="TQT_VERSION >= 222"
      else
-       kde_qt_verstring="QT_VERSION >= 200"
+       kde_qt_verstring="TQT_VERSION >= 200"
      fi
    fi
    if test $kde_qtver = 1; then
-    kde_qt_verstring="QT_VERSION >= 142 && QT_VERSION < 200"
+    kde_qt_verstring="TQT_VERSION >= 142 && TQT_VERSION < 200"
    fi
 else
    kde_qt_verstring="$3"
diff --git a/src/replaygainscanner.cpp b/src/replaygainscanner.cpp
index 2bafc9e..0e34b88 100755
--- a/src/replaygainscanner.cpp
+++ b/src/replaygainscanner.cpp
@@ -168,7 +168,7 @@ void ReplayGainScanner::showDirDialog()
 
     DirDialog *dialog = new DirDialog( config, DirDialog::ReplayGain, this, "DirDialog" );
 
-    Q_CHECK_PTR( dialog );
+    TQ_CHECK_PTR( dialog );
 
     if( dialog->exec() ) {
         emit addDir( dialog->directory, dialog->selectedFileTypes, dialog->recursive );
diff --git a/src/soundkonverter.cpp b/src/soundkonverter.cpp
index dd7dcd9..61e3561 100755
--- a/src/soundkonverter.cpp
+++ b/src/soundkonverter.cpp
@@ -347,7 +347,7 @@ void soundKonverter::openArgFiles( const TQStringList &files )
                    TQT_TQOBJECT(fileList), TQT_SLOT(addFiles(TQStringList))
                  );
 
-        Q_CHECK_PTR( dialog );
+        TQ_CHECK_PTR( dialog );
 
         if( profile != "" ) {
             dialog->setProfile( profile );
@@ -511,7 +511,7 @@ void soundKonverter::showDirDialog()
 
     DirDialog *dialog = new DirDialog( config, DirDialog::Convert, this, "DirDialog" );
 
-    Q_CHECK_PTR( dialog );
+    TQ_CHECK_PTR( dialog );
 
     if( dialog->exec() ) {
         fileList->addDir( dialog->directory, dialog->selectedFileTypes, dialog->recursive );
@@ -535,7 +535,7 @@ void soundKonverter::showCdDialog( bool intern )
 //                    TQT_TQOBJECT(fileList), TQT_SLOT(addFiles(TQStringList))
 //                  );
 
-        Q_CHECK_PTR( dialog );
+        TQ_CHECK_PTR( dialog );
 
         if( profile != "" ) {
             dialog->setProfile( profile );
@@ -590,7 +590,7 @@ void soundKonverter::showCdDialog( bool intern )
 
     device = "";
 
-    Q_CHECK_PTR( dialog );
+    TQ_CHECK_PTR( dialog );
 
     if( !dialog->noCD )
     {
@@ -696,7 +696,7 @@ void soundKonverter::showConfigDialog()
 {
     ConfigDialog *dialog = new ConfigDialog( config, this, "ConfigDialog", ConfigDialog::Page(configStartPage) );
 
-    Q_CHECK_PTR( dialog );
+    TQ_CHECK_PTR( dialog );
 
     //dialog->setGeometry( frameGeometry() );
     dialog->resize( size() );
@@ -724,7 +724,7 @@ void soundKonverter::showConfigEnvironmentPage()
 // {
 //     AboutPlugins *dialog = new AboutPlugins( config, this, "AboutPlugins" );
 // 
-//     Q_CHECK_PTR( dialog );
+//     TQ_CHECK_PTR( dialog );
 // 
 //     dialog->exec();
 //