diff --git a/modules/proxy/mod_proxy_balancer.c b/modules/proxy/mod_proxy_balancer.c
index 01247ff44a..84d8f30d30 100644
--- a/modules/proxy/mod_proxy_balancer.c
+++ b/modules/proxy/mod_proxy_balancer.c
@@ -737,6 +737,12 @@ static int balancer_post_config(apr_pool_t *pconf, apr_pool_t *plog,
         sconf = s->module_config;
         conf = (proxy_server_conf *)ap_get_module_config(sconf, &proxy_module);
 
+        if (conf->bslot) {
+            /* Shared memory already created for this proxy_server_conf.
+             */
+            s = s->next;
+            continue;
+        }
         if (conf->balancers->nelts) {
             conf->max_balancers = conf->balancers->nelts + conf->bgrowth;
             ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, APLOGNO(01178) "Doing balancers create: %d, %d (%d)",