diff --git a/src/com/serotonin/mango/view/View.java b/src/com/serotonin/mango/view/View.java
index 90bd4453f0..47bca60b3a 100644
--- a/src/com/serotonin/mango/view/View.java
+++ b/src/com/serotonin/mango/view/View.java
@@ -390,7 +390,7 @@ public void jsonDeserialize(JsonReader reader, JsonObject json)
 
 		JsonArray jsonSharers = json.getJsonArray("sharingUsers");
 		if (jsonSharers != null) {
-			viewUsers.clear();
+			viewUsers = new CopyOnWriteArrayList<ShareUser>();
 
 			for (JsonValue jv : jsonSharers.getElements()) {
 				ShareUser shareUser = reader.readPropertyValue(jv,