diff --git a/minigrida/protocols/jurse3.py b/minigrida/protocols/jurse3.py
index ca68511..385eee4 100644
--- a/minigrida/protocols/jurse3.py
+++ b/minigrida/protocols/jurse3.py
@@ -4,6 +4,7 @@
 # version 0.0
 # date 17 sept. 2021
 
+import os
 import importlib
 
 from joblib import Memory
@@ -11,11 +12,16 @@ from pathlib import Path
 
 from . import Jurse2
 
-CACHE = './cache'
+ENV_KEY = 'MINIGRIDA_CACHE'
+DEFAULT_CACHE = './cache'
+
+CACHE = os.environ[ENV_KEY] \
+            if ENV_KEY in os.environ \
+            else DEFAULT_CACHE
 
 
 class Jurse3(Jurse2):
-    """Jurse2 protocl with cache
+    """Jurse2 protocol with cache
 
     Same as Jurse2 but enable caching results to speed up
     hyperparameters tunning.