diff --git a/server/protocol.c b/server/protocol.c
index d6623cf04f3..7261ec24941 100644
--- a/server/protocol.c
+++ b/server/protocol.c
@@ -236,7 +236,9 @@ AP_DECLARE(apr_status_t) ap_rgetline_core(char **s, apr_size_t n,
             return rv;
         }
 
-        /* Something horribly wrong happened.  Someone didn't block! */
+        /* Something horribly wrong happened.  Someone didn't block! 
+         * (this also happens at the end of each kept-alive connection)
+         */
         if (APR_BRIGADE_EMPTY(bb)) {
             return APR_EGENERAL;
         }