diff --git a/MediaBrowser.Server.Implementations/IO/LibraryMonitor.cs b/MediaBrowser.Server.Implementations/IO/LibraryMonitor.cs
index 2c0257c5f6..13a06afc23 100644
--- a/MediaBrowser.Server.Implementations/IO/LibraryMonitor.cs
+++ b/MediaBrowser.Server.Implementations/IO/LibraryMonitor.cs
@@ -251,7 +251,7 @@ namespace MediaBrowser.Server.Implementations.IO
         /// <exception cref="System.ArgumentNullException">path</exception>
         private static bool ContainsParentFolder(IEnumerable<string> lst, string path)
         {
-            if (string.IsNullOrEmpty(path))
+            if (string.IsNullOrWhiteSpace(path))
             {
                 throw new ArgumentNullException("path");
             }
diff --git a/Nuget/MediaBrowser.Common.Internal.nuspec b/Nuget/MediaBrowser.Common.Internal.nuspec
index 10a8987850..0ae08c4ad3 100644
--- a/Nuget/MediaBrowser.Common.Internal.nuspec
+++ b/Nuget/MediaBrowser.Common.Internal.nuspec
@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
     <metadata>
         <id>MediaBrowser.Common.Internal</id>
-        <version>3.0.644</version>
+        <version>3.0.645</version>
         <title>MediaBrowser.Common.Internal</title>
         <authors>Luke</authors>
         <owners>ebr,Luke,scottisafool</owners>
@@ -12,7 +12,7 @@
         <description>Contains common components shared by Emby Theater and Emby Server. Not intended for plugin developer consumption.</description>
         <copyright>Copyright © Emby 2013</copyright>
         <dependencies>
-            <dependency id="MediaBrowser.Common" version="3.0.644" />
+            <dependency id="MediaBrowser.Common" version="3.0.645" />
             <dependency id="NLog" version="4.2.3" />
             <dependency id="SimpleInjector" version="3.1.2" />
         </dependencies>
diff --git a/Nuget/MediaBrowser.Common.nuspec b/Nuget/MediaBrowser.Common.nuspec
index 616f0ca2a1..b9bce00d02 100644
--- a/Nuget/MediaBrowser.Common.nuspec
+++ b/Nuget/MediaBrowser.Common.nuspec
@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
     <metadata>
         <id>MediaBrowser.Common</id>
-        <version>3.0.644</version>
+        <version>3.0.645</version>
         <title>MediaBrowser.Common</title>
         <authors>Emby Team</authors>
         <owners>ebr,Luke,scottisafool</owners>
diff --git a/Nuget/MediaBrowser.Model.Signed.nuspec b/Nuget/MediaBrowser.Model.Signed.nuspec
index d17ff16b6a..3af1b91e26 100644
--- a/Nuget/MediaBrowser.Model.Signed.nuspec
+++ b/Nuget/MediaBrowser.Model.Signed.nuspec
@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
     <metadata>
         <id>MediaBrowser.Model.Signed</id>
-        <version>3.0.644</version>
+        <version>3.0.645</version>
         <title>MediaBrowser.Model - Signed Edition</title>
         <authors>Emby Team</authors>
         <owners>ebr,Luke,scottisafool</owners>
diff --git a/Nuget/MediaBrowser.Server.Core.nuspec b/Nuget/MediaBrowser.Server.Core.nuspec
index 2098bbcfee..d48b421c56 100644
--- a/Nuget/MediaBrowser.Server.Core.nuspec
+++ b/Nuget/MediaBrowser.Server.Core.nuspec
@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2010/07/nuspec.xsd">
     <metadata>
         <id>MediaBrowser.Server.Core</id>
-        <version>3.0.644</version>
+        <version>3.0.645</version>
         <title>Media Browser.Server.Core</title>
         <authors>Emby Team</authors>
         <owners>ebr,Luke,scottisafool</owners>
@@ -12,7 +12,7 @@
         <description>Contains core components required to build plugins for Emby Server.</description>
         <copyright>Copyright © Emby 2013</copyright>
         <dependencies>
-            <dependency id="MediaBrowser.Common" version="3.0.644" />
+            <dependency id="MediaBrowser.Common" version="3.0.645" />
 			<dependency id="Interfaces.IO" version="1.0.0.5" />
         </dependencies>
     </metadata>