diff --git a/libksirtet/lib/types.cpp b/libksirtet/lib/types.cpp
index ae91c4d5..54aa79e6 100644
--- a/libksirtet/lib/types.cpp
+++ b/libksirtet/lib/types.cpp
@@ -169,20 +169,20 @@ Stream::Stream(int _mode)
 {
 	setDevice(&buf);
 	Q_ASSERT( _mode==IO_ReadOnly || _mode==IO_WriteOnly );
-	buf.open((TQIODevice_OpenModeFlag)_mode);
+	buf.open(_mode);
 }
 
 void Stream::clear()
 {
 	buf.close();
-	buf.open((TQIODevice_OpenModeFlag)(mode | IO_Truncate));
+	buf.open(mode | IO_Truncate);
 }
 
 void Stream::setArray(TQByteArray a)
 {
 	buf.close();
 	buf.setBuffer(a);
-	buf.open((TQIODevice_OpenModeFlag)mode);
+	buf.open(mode);
 }
 
 bool ReadingStream::readOk()