diff --git a/src/cluster.c b/src/cluster.c
index 328dc2c8..71b17c97 100644
--- a/src/cluster.c
+++ b/src/cluster.c
@@ -842,6 +842,7 @@ void freeClusterNode(clusterNode *n) {
     /* Release link and associated data structures. */
     if (n->link) freeClusterLink(n->link);
     listRelease(n->fail_reports);
+    zfree(n->slaves);
     zfree(n);
 }