diff --git a/kdirstat/kcleanup.cpp b/kdirstat/kcleanup.cpp
index c32c48c..506067c 100644
--- a/kdirstat/kcleanup.cpp
+++ b/kdirstat/kcleanup.cpp
@@ -278,7 +278,7 @@ KCleanup::itemDir( const KFileInfo *item ) const
 
     if ( ! item->isDir() && ! item->isDotEntry() )
     {
-	dir.tqreplace ( TQRegExp ( "/[^/]*$" ), "" );
+	dir.replace ( TQRegExp ( "/[^/]*$" ), "" );
     }
 
     return dir;
@@ -299,7 +299,7 @@ KCleanup::cleanTitle() const
 
     // Get rid of any "&" characters in the text that denote keyboard
     // shortcuts in menus.
-    title.tqreplace( TQRegExp( "&" ), "" );
+    title.replace( TQRegExp( "&" ), "" );
 
     return title;
 }
@@ -311,15 +311,15 @@ KCleanup::expandVariables( const KFileInfo *	item,
 {
     TQString expanded = unexpanded;
 
-    expanded.tqreplace( TQRegExp( "%p" ),
+    expanded.replace( TQRegExp( "%p" ),
 		      "\"" + TQString::fromLocal8Bit( item->url() )  + "\"" );
-    expanded.tqreplace( TQRegExp( "%n" ),
+    expanded.replace( TQRegExp( "%n" ),
 		      "\"" + TQString::fromLocal8Bit( item->name() ) + "\"" );
 
     if ( KDE::versionMajor() >= 3 && KDE::versionMinor() >= 4 )
-	expanded.tqreplace( TQRegExp( "%t" ), "trash:/" );
+	expanded.replace( TQRegExp( "%t" ), "trash:/" );
     else
-	expanded.tqreplace( TQRegExp( "%t" ), KGlobalSettings::trashPath() );
+	expanded.replace( TQRegExp( "%t" ), KGlobalSettings::trashPath() );
 
     return expanded;
 }
diff --git a/kdirstat/kdirtree.cpp b/kdirstat/kdirtree.cpp
index e496329..06b2bfc 100644
--- a/kdirstat/kdirtree.cpp
+++ b/kdirstat/kdirtree.cpp
@@ -328,7 +328,7 @@ KFileInfo::locate( TQString url, bool findDotEntries )
 	// if the rest of the URL consists of several pathname components.
 
 	if ( dotEntry() &&
-	     url.tqfind ( "/" ) < 0 )	// No (more) "/" in this URL
+	     url.find ( "/" ) < 0 )	// No (more) "/" in this URL
 	{
 	    return dotEntry()->locate( url, findDotEntries );
 	}
diff --git a/kdirstat/kpacman.cpp b/kdirstat/kpacman.cpp
index d6cf99c..ed2090c 100644
--- a/kdirstat/kpacman.cpp
+++ b/kdirstat/kpacman.cpp
@@ -293,7 +293,7 @@ KPacMan::mouseReleaseEvent ( TQMouseEvent *ev )
 {
     if ( _active )
     {
-	if ( _pacMan->lastPacMan().tqcontains( ev->pos() ) )
+	if ( _pacMan->lastPacMan().contains( ev->pos() ) )
 	    stop();
     }
 }
diff --git a/kdirstat/ktreemapview.cpp b/kdirstat/ktreemapview.cpp
index 07d8412..ac4ba6b 100644
--- a/kdirstat/ktreemapview.cpp
+++ b/kdirstat/ktreemapview.cpp
@@ -190,7 +190,7 @@ KTreemapView::contentsMousePressEvent( TQMouseEvent * event )
 	    // Select clicked tile's tqparent, if available
 
 	    if ( _selectedTile &&
-		 _selectedTile->rect().tqcontains( event->pos() ) )
+		 _selectedTile->rect().contains( event->pos() ) )
 	    {
 		if ( _selectedTile->parentTile() )
 		    tile = _selectedTile->parentTile();
@@ -213,7 +213,7 @@ KTreemapView::contentsMousePressEvent( TQMouseEvent * event )
 	    if ( tile )
 	    {
 		if ( _selectedTile &&
-		     _selectedTile->rect().tqcontains( event->pos() ) )
+		     _selectedTile->rect().contains( event->pos() ) )
 		{
 		    // If a directory (non-leaf tile) is already selected,
 		    // don't override this by