diff --git a/PyGenoCar.py b/PyGenoCar.py
index 90feae5..69db605 100644
--- a/PyGenoCar.py
+++ b/PyGenoCar.py
@@ -292,7 +292,7 @@ def __init__(self, world, replay=False):
         self.game_window.cars = self.cars
         self._timer = QTimer(self)
         self._timer.timeout.connect(self._update)
-        self._timer.start(1000//get_boxcar_constant('fps'))
+        self._timer.start(int(1000//get_boxcar_constant('fps')))
 
     def next_generation(self) -> None:
         if self.state == States.NEXT_GEN:
diff --git a/windows.py b/windows.py
index e18f93e..5c49363 100644
--- a/windows.py
+++ b/windows.py
@@ -18,7 +18,7 @@ def __init__(self, parent, size):
         self.size = size
         self.resize(size[0], size[1])
         self._gradient_widget = QWidget()
-        self._gradient_widget.resize(size[0]/2, size[1])
+        self._gradient_widget.resize(int(size[0]/2), size[1])
         self._create_linear_gradient()
 
         self.boxcar_form = QFormLayout()