diff --git a/MAC_LINUX_DOCKER.md b/MAC_LINUX_DOCKER.md
index 4007e50..a797994 100644
--- a/MAC_LINUX_DOCKER.md
+++ b/MAC_LINUX_DOCKER.md
@@ -1,6 +1,8 @@
 # Learning Jenkins, 03-07: Boolean Parameters
 Create a freestyle job with one build step.
 
+Add a boolean parameter called `RUN_TESTS`.
+
 ## MacOS, Linux, and Docker
 If you are running Jenkins on MacOS, Linux, or Docker: