diff --git a/src/main.rs b/src/main.rs
index 4b8eee3..e3541da 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -415,7 +415,7 @@ fn get_drivers(main_window: &gtk::Box, loading_box: &gtk::Box, ubuntu_drivers_li
             .justify(Justification::Left)
             .build();
         driver_middle_part_description_label.add_css_class("midLabel");
-        if driver_name = ("mesa-git") {
+        if driver_name == ("mesa-git") {
             driver_middle_part_description_label.add_css_class("midLabelWARN");
         }
         driver_version_icon.set_tooltip_text(Some(&String::from_utf8(command_version_label.stdout).unwrap()));