diff --git a/src/SharpCompress/Archives/ArchiveFactory.cs b/src/SharpCompress/Archives/ArchiveFactory.cs
index b697c17c..f9e304ad 100644
--- a/src/SharpCompress/Archives/ArchiveFactory.cs
+++ b/src/SharpCompress/Archives/ArchiveFactory.cs
@@ -76,9 +76,7 @@ namespace SharpCompress.Archives
             }
 
             var extensions = Factories
-                .SelectMany(item => item.GetSupportedExtensions())
-                .Select(item => item.Key)
-                .Distinct()
+                .Select(item => item.Name)
                 .Aggregate((a,b) => a + ", " + b );
 
             throw new InvalidOperationException($"Cannot determine compressed stream type. Supported Archive Formats: {extensions}");
diff --git a/src/SharpCompress/Archives/GZip/GZipArchiveFactory.cs b/src/SharpCompress/Archives/GZip/GZipArchiveFactory.cs
index d3f52ce0..d4faa639 100644
--- a/src/SharpCompress/Archives/GZip/GZipArchiveFactory.cs
+++ b/src/SharpCompress/Archives/GZip/GZipArchiveFactory.cs
@@ -10,9 +10,12 @@ namespace SharpCompress.Archives.GZip
     public class GZipArchiveFactory : IArchiveFactory
     {
         /// <inheritdoc/>
-        public IEnumerable<KeyValuePair<string, string>> GetSupportedExtensions()
+        public string Name => "GZip";
+
+        /// <inheritdoc/>
+        public IEnumerable<string> GetSupportedExtensions()
         {
-            yield return new KeyValuePair<string, string>("GZip", "gz");
+            yield return "gz";
         }
 
         /// <inheritdoc/>
diff --git a/src/SharpCompress/Archives/IArchiveFactory.cs b/src/SharpCompress/Archives/IArchiveFactory.cs
index a9d55e32..ea3f5bb7 100644
--- a/src/SharpCompress/Archives/IArchiveFactory.cs
+++ b/src/SharpCompress/Archives/IArchiveFactory.cs
@@ -22,11 +22,16 @@ namespace SharpCompress.Archives
     /// </remarks>
     public interface IArchiveFactory
     {
+        /// <summary>
+        /// Gets the archive Type name
+        /// </summary>
+        string Name { get; }
+
         /// <summary>
         /// returns the extensions typically used by this archive type.
         /// </summary>
         /// <returns></returns>
-        IEnumerable<KeyValuePair<string, string>> GetSupportedExtensions();
+        IEnumerable<string> GetSupportedExtensions();
 
         /// <summary>
         /// Returns true if the stream represents an archive of the format defined by this type.
diff --git a/src/SharpCompress/Archives/Rar/RarArchiveFactory.cs b/src/SharpCompress/Archives/Rar/RarArchiveFactory.cs
index b374a64b..bc13bd94 100644
--- a/src/SharpCompress/Archives/Rar/RarArchiveFactory.cs
+++ b/src/SharpCompress/Archives/Rar/RarArchiveFactory.cs
@@ -10,10 +10,13 @@ namespace SharpCompress.Archives.Rar
     public class RarArchiveFactory : IArchiveFactory
     {
         /// <inheritdoc/>
-        public IEnumerable<KeyValuePair<string, string>> GetSupportedExtensions()
+        public string Name => "Rar";
+
+        /// <inheritdoc/>
+        public IEnumerable<string> GetSupportedExtensions()
         {
-            yield return new KeyValuePair<string, string>("Rar", "rar");
-            yield return new KeyValuePair<string, string>("Rar", "cbr");
+            yield return "rar";
+            yield return "cbr";
         }
 
         /// <inheritdoc/>
diff --git a/src/SharpCompress/Archives/SevenZip/SevenZipArchiveFactory.cs b/src/SharpCompress/Archives/SevenZip/SevenZipArchiveFactory.cs
index 11fa673f..923c7810 100644
--- a/src/SharpCompress/Archives/SevenZip/SevenZipArchiveFactory.cs
+++ b/src/SharpCompress/Archives/SevenZip/SevenZipArchiveFactory.cs
@@ -10,9 +10,12 @@ namespace SharpCompress.Archives.SevenZip
     public class SevenZipArchiveFactory : IArchiveFactory
     {
         /// <inheritdoc/>
-        public IEnumerable<KeyValuePair<string, string>> GetSupportedExtensions()
+        public string Name => "7Zip";
+
+        /// <inheritdoc/>
+        public IEnumerable<string> GetSupportedExtensions()
         {
-            yield return new KeyValuePair<string, string>("7Zip", "7z");
+            yield return "7z";
         }
 
         /// <inheritdoc/>
diff --git a/src/SharpCompress/Archives/Tar/TarArchiveFactory.cs b/src/SharpCompress/Archives/Tar/TarArchiveFactory.cs
index 1c7fc599..8a67a5f3 100644
--- a/src/SharpCompress/Archives/Tar/TarArchiveFactory.cs
+++ b/src/SharpCompress/Archives/Tar/TarArchiveFactory.cs
@@ -10,9 +10,12 @@ namespace SharpCompress.Archives.Tar
     public class TarArchiveFactory : IArchiveFactory
     {
         /// <inheritdoc/>
-        public IEnumerable<KeyValuePair<string, string>> GetSupportedExtensions()
+        public string Name => "Tar";
+
+        /// <inheritdoc/>
+        public IEnumerable<string> GetSupportedExtensions()
         {
-            yield return new KeyValuePair<string, string>("Tar", "tar");
+            yield return "tar";
         }
 
         /// <inheritdoc/>
diff --git a/src/SharpCompress/Archives/Zip/ZipArchiveFactory.cs b/src/SharpCompress/Archives/Zip/ZipArchiveFactory.cs
index d91c6a6a..eade3e5e 100644
--- a/src/SharpCompress/Archives/Zip/ZipArchiveFactory.cs
+++ b/src/SharpCompress/Archives/Zip/ZipArchiveFactory.cs
@@ -10,11 +10,14 @@ namespace SharpCompress.Archives.Zip
     public class ZipArchiveFactory : IArchiveFactory
     {
         /// <inheritdoc/>
-        public IEnumerable<KeyValuePair<string, string>> GetSupportedExtensions()
+        public string Name => "Zip";
+
+        /// <inheritdoc/>
+        public IEnumerable<string> GetSupportedExtensions()
         {
-            yield return new KeyValuePair<string, string>("Zip", "zip");
-            yield return new KeyValuePair<string, string>("Zip", "zipx");
-            yield return new KeyValuePair<string, string>("Zip", "cbz");
+            yield return "zip";
+            yield return "zipx";
+            yield return "cbz";
         }
 
         /// <inheritdoc/>