diff --git a/CHANGES.md b/CHANGES.md
index 0ae9275b9ad..18203f7ba5c 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -5,6 +5,7 @@ Change Log
 
 ##### Fixes :wrench:
 * Fixed support of glTF-supplied tangent vectors. [#6302](https://github.com/AnalyticalGraphicsInc/cesium/pull/6302)
+* Fixed improper zoom during model load failure. [#6305](https://github.com/AnalyticalGraphicsInc/cesium/pull/6305)
 
 ### 1.43 - 2018-03-01
 
diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index f7da17c53bc..bc6872cb789 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -171,3 +171,4 @@ See [CONTRIBUTING.md](CONTRIBUTING.md) for details on how to contribute to Cesiu
 * [Nacho Carnicero](https://github.com/nacho-carnicero)
 * [Y.Selim Abidin](https://github.com/SelimAbidin)
 * [Tamar Cohen](https://github.com/tamarmot)
+* [Stephen Wiseman](https://github.com/srwiseman)
diff --git a/Source/DataSources/ModelVisualizer.js b/Source/DataSources/ModelVisualizer.js
index 68779e161e5..37954219c7a 100644
--- a/Source/DataSources/ModelVisualizer.js
+++ b/Source/DataSources/ModelVisualizer.js
@@ -126,9 +126,6 @@ define([
                     incrementallyLoadTextures : Property.getValueOrDefault(modelGraphics._incrementallyLoadTextures, time, defaultIncrementallyLoadTextures),
                     scene : this._scene
                 });
-
-                model.readyPromise.otherwise(onModelError);
-
                 model.id = entity;
                 primitives.add(model);
 
@@ -137,9 +134,12 @@ define([
                     url : resource.url,
                     animationsRunning : false,
                     nodeTransformationsScratch : {},
-                    originalNodeMatrixHash : {}
+                    originalNodeMatrixHash : {},
+                    loadFail : false
                 };
                 modelHash[entity.id] = modelData;
+
+                checkModelLoad(model, entity, modelHash);
             }
 
             model.show = true;
@@ -250,7 +250,7 @@ define([
         //>>includeEnd('debug');
 
         var modelData = this._modelHash[entity.id];
-        if (!defined(modelData)) {
+        if (!defined(modelData) || modelData.loadFail) {
             return BoundingSphereState.FAILED;
         }
 
@@ -324,8 +324,11 @@ define([
         }
     }
 
-    function onModelError(error) {
-        console.error(error);
+    function checkModelLoad(model, entity, modelHash){
+        model.readyPromise.otherwise(function(error){
+            console.error(error);
+            modelHash[entity.id].loadFail = true;
+        });
     }
 
     return ModelVisualizer;