diff --git a/tests/e2e/test_rosacli_cluster_post.go b/tests/e2e/test_rosacli_cluster_post.go
index eb7a74c591..a258990c15 100644
--- a/tests/e2e/test_rosacli_cluster_post.go
+++ b/tests/e2e/test_rosacli_cluster_post.go
@@ -325,7 +325,11 @@ var _ = Describe("Healthy check",
 				By("Check compute machine type")
 				jsonData, err := clusterService.GetJSONClusterDescription(clusterID)
 				Expect(err).To(BeNil())
-				Expect(jsonData.DigString("nodes", "compute_machine_type", "id")).To(Equal(profile.ClusterConfig.InstanceType))
+				if profile.ClusterConfig.InstanceType == "" {
+					Expect(jsonData.DigString("nodes", "compute_machine_type", "id")).To(Equal(constants.DefaultInstanceType))
+				} else {
+					Expect(jsonData.DigString("nodes", "compute_machine_type", "id")).To(Equal(profile.ClusterConfig.InstanceType))
+				}
 			})
 	})
 
diff --git a/tests/utils/common/constants/cluster.go b/tests/utils/common/constants/cluster.go
index 9f24c74611..1c939e6b53 100644
--- a/tests/utils/common/constants/cluster.go
+++ b/tests/utils/common/constants/cluster.go
@@ -51,3 +51,8 @@ var (
 	VersionRawPattern        = regexp.MustCompile(`[0-9]+\.[0-9]+\.[0-9]+-?[0-9a-z\.-]*`)
 	VersionFlexyPattern      = regexp.MustCompile(`[zy]{1}-[1-3]{1}`)
 )
+
+// instance type
+const (
+	DefaultInstanceType = "m5.xlarge"
+)