diff --git a/rest-api-spec/src/main/resources/rest-api-spec/api/ml.start_trained_model_deployment.json b/rest-api-spec/src/main/resources/rest-api-spec/api/ml.start_trained_model_deployment.json
index 5e06207e66b4a..36e6714b3e312 100644
--- a/rest-api-spec/src/main/resources/rest-api-spec/api/ml.start_trained_model_deployment.json
+++ b/rest-api-spec/src/main/resources/rest-api-spec/api/ml.start_trained_model_deployment.json
@@ -35,7 +35,7 @@
       },
       "number_of_allocations":{
         "type":"int",
-        "description": "The number of model allocations on each node where the model is deployed.",
+        "description": "The total number of allocations this model is assigned across machine learning nodes.",
         "required": false,
         "default": 1
       },