diff --git a/tests/cluster/tests/includes/init-tests.tcl b/tests/cluster/tests/includes/init-tests.tcl
index 117f7920..466ab8f2 100644
--- a/tests/cluster/tests/includes/init-tests.tcl
+++ b/tests/cluster/tests/includes/init-tests.tcl
@@ -27,12 +27,17 @@ test "Cluster nodes are reachable" {
 
 test "Cluster nodes hard reset" {
     foreach_redis_id id {
+        if {$::valgrind} {
+            set node_timeout 10000
+        } else {
+            set node_timeout 3000
+        }
         catch {R $id flushall} ; # May fail for readonly slaves.
         R $id MULTI
         R $id cluster reset hard
         R $id cluster set-config-epoch [expr {$id+1}]
         R $id EXEC
-        R $id config set cluster-node-timeout 3000
+        R $id config set cluster-node-timeout $node_timeout
         R $id config set cluster-slave-validity-factor 10
         R $id config rewrite
     }