diff --git a/papi/main.py b/papi/main.py
index 028ad74..83013ef 100644
--- a/papi/main.py
+++ b/papi/main.py
@@ -5,6 +5,8 @@ from fastapi import FastAPI
 
 app = FastAPI()
 
+sondes = []
+
 
 class Sonde(BaseModel):
     identifiant: str
diff --git a/tests/test_papi.py b/tests/test_papi.py
index 255afd5..6505835 100644
--- a/tests/test_papi.py
+++ b/tests/test_papi.py
@@ -3,6 +3,8 @@ from fastapi.testclient import TestClient
 
 from papi.main import app
 
+from papi.main import sondes
+
 from papi import __version__
 
 client = TestClient(app)
@@ -22,3 +24,4 @@ def test_creer_sonde():
     sonde1 = {"identifiant": "masonde_001", "nom": "client1"}
     response = client.post("/sonde/", json=sonde1)
     assert response.status_code == 200
+    assert sonde1 in sondes