diff --git a/src/TerminalDisplay.cpp b/src/TerminalDisplay.cpp
--- a/src/TerminalDisplay.cpp
+++ b/src/TerminalDisplay.cpp
@@ -1064,19 +1064,19 @@
 
     // shift rectangle top down one pixel to leave some space
     // between top and bottom
-    QRect cursorRect = rect.adjusted(0, 1, 0, 0);
+    QRectF cursorRect = rect.adjusted(0, 1, 0, 0);
 
     QColor cursorColor = _cursorColor.isValid() ? _cursorColor : foregroundColor;
     painter.setPen(cursorColor);
 
     if (_cursorShape == Enum::BlockCursor) {
         // draw the cursor outline, adjusting the area so that
         // it is draw entirely inside 'rect'
         int penWidth = qMax(1, painter.pen().width());
-        painter.drawRect(cursorRect.adjusted(penWidth / 2,
-                                             penWidth / 2,
-                                             - penWidth / 2 - penWidth % 2,
-                                             - penWidth / 2 - penWidth % 2));
+        painter.drawRect(cursorRect.adjusted(penWidth / 2 + 0.5,
+                                             penWidth / 2 + 0.5,
+                                             - penWidth / 2 - penWidth % 2 + 0.5,
+                                             - penWidth / 2 - penWidth % 2 + 0.5));
 
         // draw the cursor body only when the widget has focus
         if (hasFocus()) {