diff --git a/src/legacy/core_plugins/kibana/public/discover/np_ready/angular/get_painless_error.ts b/src/legacy/core_plugins/kibana/public/discover/np_ready/angular/get_painless_error.ts
index 100d9cdac133b5..c97d00a4933f92 100644
--- a/src/legacy/core_plugins/kibana/public/discover/np_ready/angular/get_painless_error.ts
+++ b/src/legacy/core_plugins/kibana/public/discover/np_ready/angular/get_painless_error.ts
@@ -24,7 +24,7 @@ export function getPainlessError(error: Error) {
   const rootCause: Array<{ lang: string; script: string }> | undefined = get(
     error,
     'body.attributes.error.root_cause'
-  );
+  ) || [get(error, 'body.attributes.error')];
   const message: string = get(error, 'body.message');
 
   if (!rootCause) {
diff --git a/src/plugins/data/public/search/search_interceptor.test.ts b/src/plugins/data/public/search/search_interceptor.test.ts
index 52a7cfb71e3b4b..bd056271688c1c 100644
--- a/src/plugins/data/public/search/search_interceptor.test.ts
+++ b/src/plugins/data/public/search/search_interceptor.test.ts
@@ -49,7 +49,7 @@ describe('SearchInterceptor', () => {
       const response = searchInterceptor.search(mockSearch, mockRequest);
       mockResponse.complete();
 
-      response.subscribe({});
+      response.subscribe();
       expect(mockSearch.mock.calls[0][0]).toBe(mockRequest);
     });