diff --git a/src/TrackedObjectBBox.cpp b/src/TrackedObjectBBox.cpp
index bd042c10..263e3904 100644
--- a/src/TrackedObjectBBox.cpp
+++ b/src/TrackedObjectBBox.cpp
@@ -383,9 +383,11 @@ void TrackedObjectBBox::SetJsonValue(const Json::Value root)
 	// Set the id of the child clip
 	if (!root["child_clip_id"].isNull() && root["child_clip_id"].asString() != "" && root["child_clip_id"].asString() != Id()){
 		Clip* parentClip = (Clip *) ParentClip();
-
-		if (root["child_clip_id"].asString() != parentClip->Id())
-			ChildClipId(root["child_clip_id"].asString());
+		if (parentClip && root["child_clip_id"].asString() != parentClip->Id()) {
+            ChildClipId(root["child_clip_id"].asString());
+		} else if (parentClip == NULL) {
+            ChildClipId(root["child_clip_id"].asString());
+		}
 	}
 
 	// Set the Keyframes by the given JSON object