--- modules/filters/mod_ratelimit.c	2012-03-21 12:29:04.699912206 -0700
+++ ppp.c	2012-03-21 12:26:46.819912556 -0700
@@ -97,7 +97,7 @@
         /* rl is in kilo bytes / second  */
         ctx->speed = atoi(rl) * 1024;
 
-        if (ctx->speed == 0) {
+        if (ctx->speed <= 0) {
             /* remove ourselves */
             ap_remove_output_filter(f);
             return ap_pass_brigade(f->next, bb);