diff --git a/src/WebCompiler/Config/ConfigFileProcessor.cs b/src/WebCompiler/Config/ConfigFileProcessor.cs
index f79018c6..5fa719a6 100644
--- a/src/WebCompiler/Config/ConfigFileProcessor.cs
+++ b/src/WebCompiler/Config/ConfigFileProcessor.cs
@@ -22,7 +22,7 @@ public class ConfigFileProcessor
         /// <param name="configs">Optional configuration items in the config file</param>
         /// <param name="force">Forces compilation of all config items.</param>
         /// <returns>A list of compiler results.</returns>
-        public IEnumerable<CompilerResult> Process(string configFile, IEnumerable<Config> configs = null, bool force = false)
+        public IEnumerable<CompilerResult> Process(string configFile, Config[] configs = null, bool force = false)
         {
             if (_processing.Contains(configFile))
                 return Enumerable.Empty<CompilerResult>();
@@ -36,8 +36,8 @@ public IEnumerable<CompilerResult> Process(string configFile, IEnumerable<Config
                 string directory = info.Directory.FullName;
                 configs = configs ?? ConfigHandler.GetConfigs(configFile);
 
-                if (configs.Any())
-                    OnConfigProcessed(configs.First(), 0, configs.Count());
+                if (configs.Length > 0)
+                    OnConfigProcessed(configs.First(), 0, configs.Length);
 
                 int i = 0;
                 foreach (Config config in configs)
@@ -56,7 +56,7 @@ public IEnumerable<CompilerResult> Process(string configFile, IEnumerable<Config
                             list.Add(ProcessConfig(directory, config));
                         }
 
-                        OnConfigProcessed(config, i, configs.Count());
+                        OnConfigProcessed(config, i, configs.Length);
                     }
                 }
             }
diff --git a/src/WebCompiler/Config/ConfigHandler.cs b/src/WebCompiler/Config/ConfigHandler.cs
index 5b827bde..7ee7d47d 100644
--- a/src/WebCompiler/Config/ConfigHandler.cs
+++ b/src/WebCompiler/Config/ConfigHandler.cs
@@ -95,16 +95,15 @@ public void CreateDefaultsFile(string fileName)
         /// </summary>
         /// <param name="fileName">A relative or absolute file path to the configuration file.</param>
         /// <returns>A list of Config objects.</returns>
-        public static IEnumerable<Config> GetConfigs(string fileName)
+        public static Config[] GetConfigs(string fileName)
         {
             FileInfo file = new FileInfo(fileName);
 
             if (!file.Exists)
-                return Enumerable.Empty<Config>();
+                return new Config[0];
 
             string content = File.ReadAllText(fileName);
-            var configs = JsonConvert.DeserializeObject<IEnumerable<Config>>(content);
-            string folder = Path.GetDirectoryName(file.FullName);
+            Config[] configs = JsonConvert.DeserializeObject<Config[]>(content);
 
             foreach (Config config in configs)
             {
diff --git a/src/WebCompiler/Program.cs b/src/WebCompiler/Program.cs
index 068d49db..e06cafe7 100644
--- a/src/WebCompiler/Program.cs
+++ b/src/WebCompiler/Program.cs
@@ -50,7 +50,7 @@ private static void EventHookups(ConfigFileProcessor processor, string configPat
             FileMinifier.AfterWritingGzipFile += (s, e) => { Console.WriteLine($"  \x1B[32mGZipped"); };
         }
 
-        private static IEnumerable<Config> GetConfigs(string configPath, string file)
+        private static Config[] GetConfigs(string configPath, string file)
         {
             var configs = ConfigHandler.GetConfigs(configPath);
 
@@ -60,9 +60,9 @@ private static IEnumerable<Config> GetConfigs(string configPath, string file)
             if (file != null)
             {
                 if (file.StartsWith("*"))
-                    configs = configs.Where(c => Path.GetExtension(c.InputFile).Equals(file.Substring(1), StringComparison.OrdinalIgnoreCase));
+                    configs = configs.Where(c => Path.GetExtension(c.InputFile).Equals(file.Substring(1), StringComparison.OrdinalIgnoreCase)).ToArray();
                 else
-                    configs = configs.Where(c => c.InputFile.Equals(file, StringComparison.OrdinalIgnoreCase));
+                    configs = configs.Where(c => c.InputFile.Equals(file, StringComparison.OrdinalIgnoreCase)).ToArray();
             }
 
             return configs;
diff --git a/src/WebCompilerTest/Config/ConfigHandlerTest.cs b/src/WebCompilerTest/Config/ConfigHandlerTest.cs
index eb809266..7109c69e 100644
--- a/src/WebCompilerTest/Config/ConfigHandlerTest.cs
+++ b/src/WebCompilerTest/Config/ConfigHandlerTest.cs
@@ -45,11 +45,9 @@ public void AddConfig()
         [TestMethod, TestCategory("Config")]
         public void NonExistingConfigFileShouldReturnEmptyList()
         {
-            var expectedResult = Enumerable.Empty<WebCompiler.Config>();
-
             var result = ConfigHandler.GetConfigs("../NonExistingFile.config");
 
-            Assert.AreEqual(expectedResult, result);
+            Assert.AreEqual(0, result.Length);
         }
     }
 }
diff --git a/src/WebCompilerTest/Minify/artifacts/css/minify.less b/src/WebCompilerTest/Minify/artifacts/css/minify.less
index 46800d16..64d2da4f 100644
--- a/src/WebCompilerTest/Minify/artifacts/css/minify.less
+++ b/src/WebCompilerTest/Minify/artifacts/css/minify.less
@@ -1,2 +1,3 @@
 body {
+  background: black
 }
diff --git a/src/WebCompilerVsix/CompilerService.cs b/src/WebCompilerVsix/CompilerService.cs
index 4246b9c2..d876a27c 100644
--- a/src/WebCompilerVsix/CompilerService.cs
+++ b/src/WebCompilerVsix/CompilerService.cs
@@ -51,7 +51,7 @@ private static void ConfigProcessed(object sender, ConfigProcessedEventArgs e)
                 _dte.StatusBar.Progress(true, "Compiling...", e.AmountProcessed, e.Total);
         }
 
-        public static void Process(string configFile, IEnumerable<Config> configs = null, bool force = false)
+        public static void Process(string configFile, Config[] configs = null, bool force = false)
         {
             ThreadPool.QueueUserWorkItem((o) =>
             {