diff --git a/spark_on_k8s/utils/configuration.py b/spark_on_k8s/utils/configuration.py
index a35fd57..e369f95 100644
--- a/spark_on_k8s/utils/configuration.py
+++ b/spark_on_k8s/utils/configuration.py
@@ -43,11 +43,7 @@ class Configuration:
         else None
     )
     SPARK_ON_K8S_SECRET_ENV_VAR = json.loads(getenv("SPARK_ON_K8S_SECRET_ENV_VAR", "{}"))
-    SPARK_ON_K8S_DRIVER_ENV_VARS_FROM_SECRET = (
-        getenv("SPARK_ON_K8S_DRIVER_ENV_VARS_FROM_SECRET").split(",")
-        if getenv("SPARK_ON_K8S_DRIVER_ENV_VARS_FROM_SECRET")
-        else []
-    )
+    SPARK_ON_K8S_DRIVER_ENV_VARS_FROM_SECRET = getenv("SPARK_ON_K8S_DRIVER_ENV_VARS_FROM_SECRET", "")
 
     # Kubernetes client configuration
     # K8S client configuration