diff --git a/src/Dialogs/NestingOptions.cs b/src/Dialogs/NestingOptions.cs
index 29fff0b..dadf681 100644
--- a/src/Dialogs/NestingOptions.cs
+++ b/src/Dialogs/NestingOptions.cs
@@ -53,5 +53,11 @@ public class NestingOptions : DialogPage
         [Category("Nesting rules")]
         [DefaultValue(false)]
         public bool EnableInterfaceImplementationRule { get; set; }
+
+        [LocDisplayName("Enable .resx resource file rule")]
+        [Description("Nest language specific resource files under the neutral resource file")]
+        [Category("Nesting rules")]
+        [DefaultValue(false)]
+        public bool EnableResxResourceFileRule { get; set; }
     }
 }
\ No newline at end of file
diff --git a/src/FileNesting.csproj b/src/FileNesting.csproj
index 73021c5..e9c7916 100644
--- a/src/FileNesting.csproj
+++ b/src/FileNesting.csproj
@@ -166,6 +166,7 @@
     <Compile Include="Nesters\IFileNester.cs" />
     <Compile Include="Nesters\ManualNester.cs" />
     <Compile Include="Nesters\Automated\PathSegmentFileNester.cs" />
+    <Compile Include="Nesters\Automated\ResxFileNester.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="source.extension.cs">
       <DependentUpon>source.extension.vsixmanifest</DependentUpon>
diff --git a/src/Nesters/Automated/ResxFileNester.cs b/src/Nesters/Automated/ResxFileNester.cs
new file mode 100644
index 0000000..f805166
--- /dev/null
+++ b/src/Nesters/Automated/ResxFileNester.cs
@@ -0,0 +1,68 @@
+using System;
+using System.Diagnostics.Contracts;
+using System.Globalization;
+using System.IO;
+using System.Linq;
+using EnvDTE;
+
+namespace MadsKristensen.FileNesting
+{
+    internal class ResxFileNester : IFileNester
+    {
+        private const string _resxExtension = ".resx";
+        private static readonly string[] _sortedCultureNames = GetSortedCultureNames();
+
+        public NestingResult Nest(string fileName)
+        {
+            string extension = Path.GetExtension(fileName);
+
+            if (!_resxExtension.Equals(extension, StringComparison.OrdinalIgnoreCase))
+                return NestingResult.Continue;
+
+            string baseName = Path.ChangeExtension(fileName, null);
+            string language = Path.GetExtension(baseName);
+
+            if (!IsValidLanguage(language))
+                return NestingResult.Continue;
+
+            string neutralFileName = Path.ChangeExtension(baseName, _resxExtension);
+
+            ProjectItem item = FileNestingPackage.DTE.Solution.FindProjectItem(neutralFileName);
+
+            if (item != null)
+            {
+                item.ProjectItems.AddFromFile(fileName);
+                return NestingResult.StopProcessing;
+            }
+
+            return NestingResult.Continue;
+        }
+
+        public bool IsEnabled()
+        {
+            return FileNestingPackage.Options.EnableResxResourceFileRule;
+        }
+
+        private bool IsValidLanguage(string language)
+        {
+            if (string.IsNullOrEmpty(language))
+                return false;
+
+            return Array.BinarySearch(_sortedCultureNames, language.TrimStart('.'), StringComparer.OrdinalIgnoreCase) >= 0;
+        }
+
+        private static string[] GetSortedCultureNames()
+        {
+            CultureInfo[] allCultures = CultureInfo.GetCultures(CultureTypes.AllCultures);
+            Contract.Assume(allCultures != null);
+            string[] cultureNames = allCultures
+                .SelectMany(culture => new[] { culture.IetfLanguageTag, culture.Name })
+                .Distinct()
+                .ToArray();
+
+            Array.Sort(cultureNames, StringComparer.OrdinalIgnoreCase);
+
+            return cultureNames;
+        }
+    }
+}
diff --git a/src/Nesters/FileNestingFactory.cs b/src/Nesters/FileNestingFactory.cs
index ee61eaa..dbf2219 100644
--- a/src/Nesters/FileNestingFactory.cs
+++ b/src/Nesters/FileNestingFactory.cs
@@ -18,6 +18,7 @@ static class FileNestingFactory
             new PathSegmentNester(),
             new SpriteNester(),
             new AddedExtensionNester(),
+            new ResxFileNester(),
 
         };
 
@@ -51,7 +52,7 @@ private static void ItemAdded(ProjectItem item)
                 {
                     ProjectItem parent = item.Collection.Parent as ProjectItem;
 
-                    if (parent == null || parent.Kind.Equals(VSConstants.ItemTypeGuid.PhysicalFile_string, StringComparison.OrdinalIgnoreCase))
+                    if (parent == null || !parent.Kind.Equals(VSConstants.ItemTypeGuid.PhysicalFile_string, StringComparison.OrdinalIgnoreCase))
                         RunNesting(item);
                 }
                 catch (Exception ex)