diff --git a/libgui/qterminal/libqterminal/unix/TerminalView.cpp b/libgui/qterminal/libqterminal/unix/TerminalView.cpp
--- a/libgui/qterminal/libqterminal/unix/TerminalView.cpp
+++ b/libgui/qterminal/libqterminal/unix/TerminalView.cpp
@@ -2533,11 +2533,11 @@
   if (!_isFixedSize)
     {
       // ensure that display is always at least one column wide
-      _columns = qMax(1,qRound(_contentWidth / _fontWidth));
+      _columns = qMax(1,qFloor(_contentWidth / _fontWidth));
       _usedColumns = qMin(_usedColumns,_columns);
 
       // ensure that display is always at least one line high
-      _lines = qMax(1, qRound(_contentHeight / _fontHeight));
+      _lines = qMax(1, qFloor(_contentHeight / _fontHeight));
       _usedLines = qMin(_usedLines,_lines);
     }
 }