Index: client.c
===================================================================
--- client.c	(revision 28010)
+++ client.c	(working copy)
@@ -345,14 +345,22 @@
 {
     Client *c;
 
-    TRACE ("entering urgent_cb");
+    TRACE ("entering urgent_cb, iteration %i", c->blink_iterations);
 
     c = (Client *) data;
     if (c != clientGetFocus ())
     {
-        FLAG_TOGGLE (c->xfwm_flags, XFWM_FLAG_SEEN_ACTIVE);
-        frameQueueDraw (c, FALSE);
+        if (c->blink_iterations < MAX_BLINK_ITERATIONS)
+        {
+            c->blink_iterations++;
+            FLAG_TOGGLE (c->xfwm_flags, XFWM_FLAG_SEEN_ACTIVE);
+            frameQueueDraw (c, FALSE);
+        }
     }
+    else if (c->blink_iterations)
+    {
+        c->blink_iterations = 0;
+    }
     return (TRUE);
 }
 
@@ -372,6 +380,7 @@
     FLAG_UNSET (c->wm_flags, WM_FLAG_URGENT);
 
     c->blink_timeout_id = 0;
+    c->blink_iterations = 0;
     if ((c->wmhints) && (c->wmhints->flags & XUrgencyHint))
     {
         FLAG_SET (c->wm_flags, WM_FLAG_URGENT);
@@ -1639,6 +1648,9 @@
     c->opacity_applied = c->opacity;
     c->opacity_flags = 0;
 
+    /* Keep count of blinking iterations */
+    c->blink_iterations = 0;
+
     if (getOpacityLock (display_info, c->window))
     {
         FLAG_SET (c->xfwm_flags, XFWM_FLAG_OPACITY_LOCKED);
Index: client.h
===================================================================
--- client.h	(revision 28010)
+++ client.h	(working copy)
@@ -102,13 +102,17 @@
 #endif
 
 #ifndef CLIENT_BLINK_TIMEOUT
-#define CLIENT_BLINK_TIMEOUT            500 /* ms */
+#define CLIENT_BLINK_TIMEOUT            500  /* ms */
 #endif
 
 #ifndef CLIENT_PING_TIMEOUT
 #define CLIENT_PING_TIMEOUT             3000 /* ms */
 #endif
 
+#ifndef MAX_BLINK_ITERATIONS
+#define MAX_BLINK_ITERATIONS            20   /* Keep that even */
+#endif
+
 #define XFWM_FLAG_HAS_BORDER            (1L<<0)
 #define XFWM_FLAG_HAS_MENU              (1L<<1)
 #define XFWM_FLAG_HAS_MAXIMIZE          (1L<<2)
@@ -286,6 +290,7 @@
     int previous_height;
     int initial_layer;
     int ncmap;
+    int blink_iterations;
     int button_status[BUTTON_COUNT];
     int struts[STRUTS_SIZE];
     gchar *hostname;