diff --git a/google/resource_redis_instance.go b/google/resource_redis_instance.go
index ca3c2a70..d580dddf 100644
--- a/google/resource_redis_instance.go
+++ b/google/resource_redis_instance.go
@@ -358,18 +358,22 @@ func resourceRedisInstanceUpdate(d *schema.ResourceData, meta interface{}) error
 
 	log.Printf("[DEBUG] Updating Instance %q: %#v", d.Id(), obj)
 	updateMask := []string{}
+
 	if d.HasChange("display_name") {
 		updateMask = append(updateMask, "displayName")
 	}
+
 	if d.HasChange("labels") {
 		updateMask = append(updateMask, "labels")
 	}
-	if d.HasChange("memory_size_gb") {
-		updateMask = append(updateMask, "memorySizeGb")
-	}
+
 	if d.HasChange("redis_configs") {
 		updateMask = append(updateMask, "redisConfigs")
 	}
+
+	if d.HasChange("memory_size_gb") {
+		updateMask = append(updateMask, "memorySizeGb")
+	}
 	// updateMask is a URL parameter but not present in the schema, so replaceVars
 	// won't set it
 	url, err = addQueryParams(url, map[string]string{"updateMask": strings.Join(updateMask, ",")})