diff --git a/03_06.md b/03_06.md
index 5ee35e7..6fff18d 100644
--- a/03_06.md
+++ b/03_06.md
@@ -1,4 +1,4 @@
-# Learning Jenkins, 03-06: String Parameters
+# Learning Jenkins, 03-06: Choice Parameters
 Create a freestyle job with one build step.
 
 # WINDOWS SYSTEMS
diff --git a/MAC_LINUX_DOCKER.md b/MAC_LINUX_DOCKER.md
index 0065f5c..f0493c7 100644
--- a/MAC_LINUX_DOCKER.md
+++ b/MAC_LINUX_DOCKER.md
@@ -1,4 +1,4 @@
-# Learning Jenkins, 03-06: String Parameters
+# Learning Jenkins, 03-06: Choice Parameters
 Create a freestyle job with one build step.
 
 # MacOS, Linux, and Docker
diff --git a/WINDOWS.md b/WINDOWS.md
index 9a2c022..52a0db1 100644
--- a/WINDOWS.md
+++ b/WINDOWS.md
@@ -1,4 +1,4 @@
-# Learning Jenkins, 03-06: String Parameters
+# Learning Jenkins, 03-06: Choice Parameters
 Create a freestyle job with one build step.
 
 # WINDOWS SYSTEMS