diff --git a/gui/canvas/connection.py b/gui/canvas/connection.py
index be5db73..0195c23 100644
--- a/gui/canvas/connection.py
+++ b/gui/canvas/connection.py
@@ -10,6 +10,8 @@ SPDX-License-Identifier: GPL-2.0-or-later
 from argparse import Namespace
 from math import pi
 
+import cairo
+
 from . import colors
 from .drawable import Drawable
 from .. import Utils
@@ -45,8 +47,11 @@ class Connection(CoreConnection, Drawable):
 
         self._rel_points = None  # connection coordinates relative to sink/source
         self._arrow_rotation = 0.0  # rotation of the arrow in radians
-        self._current_cr = None  # for what_is_selected() of curved line
         self._line_path = None
+        # simple cairo context for curved line and computing what_is_selected
+        cr = cairo.Context(cairo.RecordingSurface(cairo.CONTENT_ALPHA, None))
+        cr.set_line_width(cr.get_line_width() * LINE_SELECT_SENSITIVITY)
+        self._line_path_cr = cr
 
     @nop_write
     @property
@@ -125,12 +130,13 @@ class Connection(CoreConnection, Drawable):
             cr.curve_to(*(p2 + p3 + p4))
             cr.line_to(*p5)
             self._line_path = cr.copy_path()
+            self._line_path_cr.new_path()
+            self._line_path_cr.append_path(self._line_path)
 
     def draw(self, cr):
         """
         Draw the connection.
         """
-        self._current_cr = cr
         sink = self.sink_port
         source = self.source_port
 
@@ -192,18 +198,11 @@ class Connection(CoreConnection, Drawable):
         if coor_m:
             return Drawable.what_is_selected(self, coor, coor_m)
 
-        x, y = [a - b for a, b in zip(coor, self.coordinate)]
-
-        cr = self._current_cr
-
-        if cr is None:
+        if self._line_path is None:
             return
-        cr.save()
-        cr.new_path()
-        cr.append_path(self._line_path)
-        cr.set_line_width(cr.get_line_width() * LINE_SELECT_SENSITIVITY)
-        hit = cr.in_stroke(x, y)
-        cr.restore()
+
+        x, y = [a - b for a, b in zip(coor, self.coordinate)]
+        hit = self._line_path_cr.in_stroke(x, y)
 
         if hit:
             return self