diff --git a/glue/app/qt/splash_screen.py b/glue/app/qt/splash_screen.py
index 11733f931..f151a735a 100644
--- a/glue/app/qt/splash_screen.py
+++ b/glue/app/qt/splash_screen.py
@@ -28,7 +28,7 @@ def __init__(self, *args, **kwargs):
         self.image = QtGui.QPixmap(pth)
 
     def set_progress(self, value):
-        self.progress.setValue(value)
+        self.progress.setValue(int(value))
         QtWidgets.QApplication.processEvents()  # update progress bar
 
     def paintEvent(self, event):