diff --git a/Development.md b/Development.md
index fb8ab63..d2cf8cf 100644
--- a/Development.md
+++ b/Development.md
@@ -37,6 +37,9 @@ This is the easiest way to run the testsuite against the zfs modules in the runn
 
 From the main repo just run: `./tests/run_tests_docker`
 
+You can use the unittest -k option to run only specific tests: `./tests/autorun_tests_docker -k test_thinner.TestThinner`
+```
+
 ## Running directly (without docker)
 
 This can be a bit more tricky.