diff --git a/main.c b/main.c
index 877286d9c35b5232f48ee44b248e963460d70d50..49639a14733774eea8502d0d498b6c05ffe6408e 100644
--- a/main.c
+++ b/main.c
@@ -89,6 +89,12 @@ 		BlackPixel(display, screen),
 		WhitePixel(display, screen)
 	);
 	XStoreName(display, zoom_window, "Xmagnify");
+
+	XClassHint class_hint;
+	class_hint.res_name = "xmagnify";
+	class_hint.res_class = "Xmagnify";
+	XSetClassHint(display, zoom_window, &class_hint);
+
 	XSelectInput(display, zoom_window, KeyPressMask);
 	XMapWindow(display, zoom_window);
 }