diff --git a/src/org/forkalsrud/album/web/AlbumServlet.java b/src/org/forkalsrud/album/web/AlbumServlet.java
index 53b0eb7..d714a79 100644
--- a/src/org/forkalsrud/album/web/AlbumServlet.java
+++ b/src/org/forkalsrud/album/web/AlbumServlet.java
@@ -66,6 +66,8 @@ public class AlbumServlet
     public void doGet(HttpServletRequest req, HttpServletResponse res)
         throws ServletException, IOException
     {
+        if (req.getParameter("cacheFlush") != null) imageCache.flush();
+
         req.setAttribute("assets", req.getContextPath() + "/assets");
         req.setAttribute("req", req);
         req.setAttribute("base", req.getContextPath() + req.getServletPath());