diff --git a/plugin/src/main/java/io/jenkins/plugins/casc/yaml/YamlSource.java b/plugin/src/main/java/io/jenkins/plugins/casc/yaml/YamlSource.java
index fdbeb3f5..e17c4cc7 100644
--- a/plugin/src/main/java/io/jenkins/plugins/casc/yaml/YamlSource.java
+++ b/plugin/src/main/java/io/jenkins/plugins/casc/yaml/YamlSource.java
@@ -12,7 +12,7 @@ public class YamlSource<T> {
 
     public final T source;
 
-    public YamlSource(T source) {
+    private YamlSource(T source) {
         this.source = source;
     }