diff --git a/Jenkinsfile b/Jenkinsfile
index e251b78..1a1ae13 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -13,9 +13,12 @@ pipeline {
     }
 
     parameters {
-        string(name: 'R7RS_SCHEMES', defaultValue: 'chibi chicken gauche guile kawa mosh racket sagittarius stklos ypsilon', description: '')
-        string(name: 'R6RS_SCHEMES', defaultValue: 'chezscheme guile ikarus ironscheme mosh racket sagittarius ypsilon', description: '')
-        string(name: 'LIBRARIES', defaultValue: 'system shell', description: '')
+        //string(name: 'R7RS_SCHEMES', defaultValue: 'chibi chicken gauche guile kawa mosh racket sagittarius stklos ypsilon', description: '')
+        string(name: 'R7RS_SCHEMES', defaultValue: 'chibi', description: '')
+        //string(name: 'R6RS_SCHEMES', defaultValue: 'chezscheme guile ikarus ironscheme mosh racket sagittarius ypsilon', description: '')
+        string(name: 'R6RS_SCHEMES', defaultValue: 'chezscheme', description: '')
+        //string(name: 'R6RS_SCHEMES', defaultValue: 'chezscheme', description: '')
+        string(name: 'LIBRARIES', defaultValue: 'system', description: '')
     }
 
     stages {