diff --git a/recipe/unit-testing.cake b/recipe/unit-testing.cake
index 24094d0..3180389 100644
--- a/recipe/unit-testing.cake
+++ b/recipe/unit-testing.cake
@@ -5,10 +5,12 @@
 public static class UnitTesting
 {
     static ICakeContext _context;
+    static IUnitTestRunner _runner;
 
     static UnitTesting()
     {
         _context = BuildSettings.Context;
+        _runner = BuildSettings.UnitTestRunner ?? new NUnitLiteRunner();
     }
 
     public static void RunAllTests()
@@ -17,9 +19,7 @@ public static class UnitTesting
 
         _context.Information($"Located {unitTests.Count} unit test assemblies.");
         var errors = new List<string>();
-    
-        var runner = BuildSettings.UnitTestRunner ?? new NUnitLiteRunner();
-    
+      
         foreach (var testPath in unitTests)
         {
             var testFile = testPath.GetFilename();
@@ -30,7 +30,7 @@ public static class UnitTesting
                 ? $"Running {testFile} under {runtime}"
                 : $"Running {testFile}");
 
-            int rc = runner.RunUnitTest(testPath);
+            int rc = _runner.RunUnitTest(testPath);
 
             var name = runtime != null
                 ? $"{testFile}({runtime})"
@@ -76,7 +76,9 @@ public static class UnitTesting
         {
             // Use default patterns to find unit tests - case insensitive because
             // we don't know how the user may have named test assemblies.
-            var defaultPatterns = new [] { "**/*.tests.dll", "**/*.tests.exe" };
+            var defaultPatterns = _runner is NUnitLiteRunner
+                ? new[] { "**/*.tests.exe" }
+                : new[] { "**/*.tests.dll", "**/*.tests.exe" };
             var globberSettings = new GlobberSettings { IsCaseSensitive = false };
             foreach (string filePattern in defaultPatterns)
                 foreach (var testPath in _context.GetFiles(BuildSettings.OutputDirectory + filePattern, globberSettings))