diff --git a/src/Radarr.Api.V3/Movies/MovieResource.cs b/src/Radarr.Api.V3/Movies/MovieResource.cs
index ef0cb5e2f..d3eca86a8 100644
--- a/src/Radarr.Api.V3/Movies/MovieResource.cs
+++ b/src/Radarr.Api.V3/Movies/MovieResource.cs
@@ -198,7 +198,7 @@ public static Movie ToModel(this MovieResource resource)
 
                 RootFolderPath = resource.RootFolderPath,
 
-                Tags = resource.Tags,
+                Tags = resource.Tags ?? new HashSet<int>(),
                 Added = resource.Added,
                 AddOptions = resource.AddOptions
             };