diff --git a/rest-api-spec/test/mlt/10_basic.yaml b/rest-api-spec/test/mlt/10_basic.yaml
index 45c3762ebae..e914607b997 100644
--- a/rest-api-spec/test/mlt/10_basic.yaml
+++ b/rest-api-spec/test/mlt/10_basic.yaml
@@ -10,6 +10,10 @@
   - do:
       indices.refresh: {}
 
+  - do:
+      cluster.health:
+           wait_for_status: green
+           timeout: 1s   
   - do:
       mlt:
           index:  test_1