diff --git a/x-pack/plugin/async-search/src/main/java/org/elasticsearch/xpack/search/RestGetAsyncSearchAction.java b/x-pack/plugin/async-search/src/main/java/org/elasticsearch/xpack/search/RestGetAsyncSearchAction.java
index 264741c053ba2..4ee50181600c3 100644
--- a/x-pack/plugin/async-search/src/main/java/org/elasticsearch/xpack/search/RestGetAsyncSearchAction.java
+++ b/x-pack/plugin/async-search/src/main/java/org/elasticsearch/xpack/search/RestGetAsyncSearchAction.java
@@ -44,8 +44,8 @@ protected RestChannelConsumer prepareRequest(RestRequest request, NodeClient cli
         if (request.hasParam("keep_alive")) {
             get.setKeepAlive(request.paramAsTime("keep_alive", get.getKeepAlive()));
         }
-        if (request.hasParam("partial_results")) {
-            get.setReturnIntermediateResults(request.paramAsBoolean("partial_results", get.getReturnIntermediateResults()));
+        if (request.hasParam("return_intermediate_results")) {
+            get.setReturnIntermediateResults(request.paramAsBoolean("return_intermediate_results", get.getReturnIntermediateResults()));
         }
         return channel -> client.execute(GetAsyncSearchAction.INSTANCE, get, new RestRefCountedChunkedToXContentListener<>(channel) {
             @Override