diff --git a/src/Sonarr.Api.V3/Series/SeriesController.cs b/src/Sonarr.Api.V3/Series/SeriesController.cs
index 48d377e40..72bf0ee41 100644
--- a/src/Sonarr.Api.V3/Series/SeriesController.cs
+++ b/src/Sonarr.Api.V3/Series/SeriesController.cs
@@ -72,26 +72,34 @@ namespace Sonarr.Api.V3.Series
             _commandQueueManager = commandQueueManager;
             _rootFolderService = rootFolderService;
 
-            Http.Validation.RuleBuilderExtensions.ValidId(SharedValidator.RuleFor(s => s.QualityProfileId));
-
-            SharedValidator.RuleFor(s => s.Path)
-                .Cascade(CascadeMode.Stop)
+            SharedValidator.RuleFor(s => s.Path).Cascade(CascadeMode.Stop)
+                .IsValidPath()
+                .SetValidator(rootFolderValidator)
+                .SetValidator(mappedNetworkDriveValidator)
+                .SetValidator(seriesPathValidator)
+                .SetValidator(seriesAncestorValidator)
+                .SetValidator(systemFolderValidator)
+                .When(s => s.Path.IsNotNullOrWhiteSpace());
+
+            PostValidator.RuleFor(s => s.Path).Cascade(CascadeMode.Stop)
+                .NotEmpty()
+                .IsValidPath()
+                .When(s => s.RootFolderPath.IsNullOrWhiteSpace());
+            PostValidator.RuleFor(s => s.RootFolderPath).Cascade(CascadeMode.Stop)
+                .NotEmpty()
                 .IsValidPath()
-                           .SetValidator(rootFolderValidator)
-                           .SetValidator(mappedNetworkDriveValidator)
-                           .SetValidator(seriesPathValidator)
-                           .SetValidator(seriesAncestorValidator)
-                           .SetValidator(systemFolderValidator)
-                           .When(s => !s.Path.IsNullOrWhiteSpace());
-
-            SharedValidator.RuleFor(s => s.QualityProfileId).SetValidator(qualityProfileExistsValidator);
-
-            PostValidator.RuleFor(s => s.Path).IsValidPath().When(s => s.RootFolderPath.IsNullOrWhiteSpace());
-            PostValidator.RuleFor(s => s.RootFolderPath)
-                         .IsValidPath()
-                         .SetValidator(rootFolderExistsValidator)
-                         .SetValidator(seriesFolderAsRootFolderValidator)
-                         .When(s => s.Path.IsNullOrWhiteSpace());
+                .SetValidator(rootFolderExistsValidator)
+                .SetValidator(seriesFolderAsRootFolderValidator)
+                .When(s => s.Path.IsNullOrWhiteSpace());
+
+            PutValidator.RuleFor(s => s.Path).Cascade(CascadeMode.Stop)
+                .NotEmpty()
+                .IsValidPath();
+
+            SharedValidator.RuleFor(s => s.QualityProfileId).Cascade(CascadeMode.Stop)
+                .ValidId()
+                .SetValidator(qualityProfileExistsValidator);
+
             PostValidator.RuleFor(s => s.Title).NotEmpty();
             PostValidator.RuleFor(s => s.TvdbId).GreaterThan(0).SetValidator(seriesExistsValidator);
         }