diff --git a/Detailed-Topics/Testing.md b/Detailed-Topics/Testing.md
index 4741e82..b361b06 100644
--- a/Detailed-Topics/Testing.md
+++ b/Detailed-Topics/Testing.md
@@ -141,18 +141,10 @@ parallelExecution in Test := false
 
 If you want to only run test classes whose name ends with "Test", use `Tests.Filter`:
 
-```scala
+```
 testOptions in Test := Seq(Tests.Filter(s => s.endsWith("Test")))
 ```
-or if you want remove other tests from `detected-tests` for some reason:
 
-```scala
-definedTests in Test <<= (definedTests in Test) {
-  (tests) =>
-    def filter(tests: Seq[TestDefinition]) = tests.filter(t => t.name.endsWith("Test"))
-    tests map filter
-}
-```
 ## Forking tests
 
 In version 0.12 the facility to run tests in a separate JVM has been added. The setting