diff --git a/Jenkinsfile b/Jenkinsfile
index 4a44176..ef1adcd 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -10,8 +10,8 @@ pipeline {
                 )
         }
     environment {
-        KAGGLE_KEY = "${params.key}"
-        KAGGLE_USERNAME = "${params.username}"
+        KAGGLE_KEY = '$params.key'
+        KAGGLE_USERNAME = '$params.username'
     }
 
     stages {