diff --git a/server/modules/routing/readconnroute/readconnroute.cc b/server/modules/routing/readconnroute/readconnroute.cc
index 4040ff303..9f4d8b808 100644
--- a/server/modules/routing/readconnroute/readconnroute.cc
+++ b/server/modules/routing/readconnroute/readconnroute.cc
@@ -367,8 +367,8 @@ static MXS_ROUTER_SESSION* newSession(MXS_ROUTER* instance, MXS_SESSION* session
                     candidate = ref;
                 }
             }
-            else if (ref->connections / ref->server_weight
-                     < candidate->connections / candidate->server_weight)
+            else if ((ref->connections + 1) / ref->server_weight
+                     < (candidate->connections + 1) / candidate->server_weight)
             {
                 /* ref has a better score. */
                 candidate = ref;
diff --git a/server/modules/routing/readwritesplit/rwsplit_select_backends.cc b/server/modules/routing/readwritesplit/rwsplit_select_backends.cc
index 7dafb8cd8..1d2b78f01 100644
--- a/server/modules/routing/readwritesplit/rwsplit_select_backends.cc
+++ b/server/modules/routing/readwritesplit/rwsplit_select_backends.cc
@@ -79,7 +79,7 @@ SRWBackendVector::iterator best_score(SRWBackendVector& sBackends,
 SRWBackendVector::iterator backend_cmp_router_conn(SRWBackendVector& sBackends)
 {
     static auto server_score = [](SERVER_REF* server) {
-            return server->server_weight ? server->connections / server->server_weight : 0;
+            return server->server_weight ? (server->connections + 1) / server->server_weight : 0;
         };
 
     return best_score(sBackends, server_score);
@@ -89,7 +89,7 @@ SRWBackendVector::iterator backend_cmp_router_conn(SRWBackendVector& sBackends)
 SRWBackendVector::iterator backend_cmp_global_conn(SRWBackendVector& sBackends)
 {
     static auto server_score = [](SERVER_REF* server) {
-            return server->server_weight ? server->server->stats.n_current / server->server_weight : 0;
+            return server->server_weight ? (server->server->stats.n_current + 1) / server->server_weight : 0;
         };
 
     return best_score(sBackends, server_score);
@@ -109,7 +109,7 @@ SRWBackendVector::iterator backend_cmp_behind_master(SRWBackendVector& sBackends
 SRWBackendVector::iterator backend_cmp_current_load(SRWBackendVector& sBackends)
 {
     static auto server_score = [](SERVER_REF* server) {
-            return server->server_weight ? server->server->stats.n_current_ops / server->server_weight : 0;
+            return server->server_weight ? (server->server->stats.n_current_ops + 1) / server->server_weight : 0;
         };
 
     return best_score(sBackends, server_score);