diff --git a/enc.py b/enc.py
index 2e11abe..97e9c0c 100755
--- a/enc.py
+++ b/enc.py
@@ -34,11 +34,11 @@ def main():
 
             # Add 'enc_role' parameter with classes data
             if "classes" in data:
-                data["parameters"]["enc_role"] = data["classes"]
+                data["parameters"]["enc_role"] = data["classes"][:]
 
             # Copy the environment to the parameters, if it exists
             if data.get("environment"):
-                data["parameters"]["enc_env"] = data["environment"]
+                data["parameters"]["enc_env"] = data["environment"][:]
 
             # If the environment is 'testing', remove it
             if data.get("environment") == "testing":