diff --git a/gtk/gtk-win32-base.css b/gtk/gtk-win32-base.css
index 0ce6379cd3..939ab0353e 100644
--- a/gtk/gtk-win32-base.css
+++ b/gtk/gtk-win32-base.css
@@ -78,7 +78,7 @@ GtkFrame {
 }
 
 .spinner:active {
-  transition: 750ms linear lop;
+  transition: 750ms linear loop;
 }
 
 .notebook > GtkScrolledWindow.frame {