diff --git a/plotpy/tests/unit/utils.py b/plotpy/tests/unit/utils.py
index 2f9ee70..3f51f79 100644
--- a/plotpy/tests/unit/utils.py
+++ b/plotpy/tests/unit/utils.py
@@ -162,7 +162,7 @@ def mouse_event_at_relative_plot_pos(
         mouse_event = QG.QMouseEvent(
             type_,
             canvas_pos,
-            canvas.mapToGlobal(canvas_pos.toPoint()),
+            canvas.mapToGlobal(QC.QPointF(canvas_pos.toPoint())),
             btn,
             btn,
             mod,