diff --git a/data.c b/data.c
index 0d7765c..0d497bf 100644
--- a/data.c
+++ b/data.c
@@ -1064,8 +1064,6 @@ void purge_all(void)
     xs *list = user_list();
     char *p, *uid;
 
-    srv_debug(1, xs_fmt("purge start"));
-
     p = list;
     while (xs_list_iter(&p, &uid)) {
         if (user_open(&snac, uid)) {
@@ -1073,6 +1071,4 @@ void purge_all(void)
             user_free(&snac);
         }
     }
-
-    srv_debug(1, xs_fmt("purge end"));
 }
diff --git a/httpd.c b/httpd.c
index 4233057..a365b4d 100644
--- a/httpd.c
+++ b/httpd.c
@@ -207,18 +207,37 @@ void term_handler(int s)
 }
 
 
+static void *purge_thread(void *arg)
+/* spawned purge */
+{
+    srv_log(xs_dup("purge start"));
+
+    purge_all();
+
+    srv_log(xs_dup("purge end"));
+
+    return NULL;
+}
+
+
 static void *queue_thread(void *arg)
 /* queue thread (queue management) */
 {
     pthread_mutex_t dummy_mutex = PTHREAD_MUTEX_INITIALIZER;
     pthread_cond_t  dummy_cond  = PTHREAD_COND_INITIALIZER;
+    time_t purge_time;
+
+    /* first purge time */
+    purge_time = time(NULL) + 15 * 60;
 
     srv_log(xs_fmt("queue thread start"));
 
     while (srv_running) {
         xs *list = user_list();
         char *p, *uid;
+        time_t t;
 
+        /* process queues for all users */
         p = list;
         while (xs_list_iter(&p, &uid)) {
             snac snac;
@@ -229,6 +248,16 @@ static void *queue_thread(void *arg)
             }
         }
 
+        /* time to purge? */
+        if ((t = time(NULL)) > purge_time) {
+            pthread_t pth;
+
+            pthread_create(&pth, NULL, purge_thread, NULL);
+
+            /* next purge time is tomorrow */
+            purge_time = t + 24 * 60 * 60;
+        }
+
         /* sleep 3 seconds */
         struct timespec ts;
         clock_gettime(CLOCK_REALTIME, &ts);