diff --git a/spine-unity/Assets/Spine/Editor/spine-unity/Editor/Utility/SpineEditorUtilities.cs b/spine-unity/Assets/Spine/Editor/spine-unity/Editor/Utility/SpineEditorUtilities.cs
index d5b5a5f2f..b5cb25e5a 100644
--- a/spine-unity/Assets/Spine/Editor/spine-unity/Editor/Utility/SpineEditorUtilities.cs
+++ b/spine-unity/Assets/Spine/Editor/spine-unity/Editor/Utility/SpineEditorUtilities.cs
@@ -114,6 +114,7 @@ namespace Spine.Unity.Editor {
 				var mesh = meshFilter.sharedMesh;
 				string meshName = string.Format("Skeleton Prefab Mesh \"{0}\"", renderer.name);
 				mesh.name = meshName;
+				mesh.hideFlags = HideFlags.DontSaveInEditor; // removed flag DontSaveInBuild, prevents a build error when the prefab is referenced
 				context.AddObjectToAsset(meshName, mesh);
 			}
 		}