diff --git a/concrete/numpy/compilation/circuit.py b/concrete/numpy/compilation/circuit.py
index 5683ec7db..f3c0d4097 100644
--- a/concrete/numpy/compilation/circuit.py
+++ b/concrete/numpy/compilation/circuit.py
@@ -80,7 +80,8 @@ class Circuit:
         if configuration.use_insecure_key_cache:
             assert_that(configuration.enable_unsafe_features)
             location = CompilationConfiguration.insecure_key_cache_location()
-            self._keyset_cache = KeySetCache.new(str(location))
+            if location is not None:
+                self._keyset_cache = KeySetCache.new(str(location))
         self._keyset = None
 
         self._server_lambda = self._jit_support.load_server_lambda(self._compilation_result)