diff --git a/Jenkinsfile b/Jenkinsfile
index d31728f..4c58898 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -122,8 +122,10 @@ pipeline {
 }
 
 def buildComponents(args) {
-    parallel args.items?.collectEntries { name -> [ "${name}": {
-        if (!"NONE".equalsIgnoreCase(name))
-            build name
-    }]}
+    if (args.items) {
+        parallel args.items?.collectEntries { name -> [ "${name}": {
+            if (!"NONE".equalsIgnoreCase(name))
+                build name
+        }]}
+    }
 }
\ No newline at end of file