diff --git a/app/scodoc/sco_cache.py b/app/scodoc/sco_cache.py
index 19f3dd63b..d65482a1c 100644
--- a/app/scodoc/sco_cache.py
+++ b/app/scodoc/sco_cache.py
@@ -80,7 +80,7 @@ class ScoDocCache:
 
     @classmethod
     def get(cls, oid):
-        """Returns cached evaluation, or None"""
+        """Returns cached object, or None"""
         try:
             return CACHE.get(cls._get_key(oid))
         except:
@@ -129,7 +129,7 @@ class EvaluationCache(ScoDocCache):
         "delete evaluations in this formsemestre from cache"
         req = """SELECT e.id
         FROM notes_formsemestre s, notes_evaluation e, notes_moduleimpl m 
-        WHERE s.id = %(formsemestre_id)s and s.id=m.id and e.moduleimpl_id=m.id;
+        WHERE s.id = %(formsemestre_id)s and s.id=m.formsemestre_id and e.moduleimpl_id=m.id;
         """
         evaluation_ids = [
             x[0] for x in ndb.SimpleQuery(req, {"formsemestre_id": formsemestre_id})
diff --git a/tests/unit/test_caches.py b/tests/unit/test_caches.py
index 7b6f0542f..37392feec 100644
--- a/tests/unit/test_caches.py
+++ b/tests/unit/test_caches.py
@@ -17,7 +17,7 @@ from app.scodoc import sco_evaluations
 from app.scodoc import sco_formsemestre
 from app.scodoc import notesdb as ndb
 from config import TestConfig
-
+from tests.unit.test_sco_basic import run_sco_basic
 
 DEPT = TestConfig.DEPT_TEST
 context = None  # #context
@@ -28,7 +28,7 @@ def test_notes_table(test_client):
     ndb.set_sco_dept(DEPT)
     assert g.scodoc_dept == DEPT
     # prépare le département avec quelques semestres:
-    run_scenario1()
+    run_sco_basic()
     #
     sems = sco_formsemestre.do_formsemestre_list(context)
     assert len(sems)
@@ -50,6 +50,9 @@ def test_cache_evaluations(test_client):
     """"""
     # cherche un semestre ayant des evaluations
     ndb.set_sco_dept(DEPT)
+    # prépare le département avec quelques semestres:
+    run_sco_basic()
+    #
     sems = sco_formsemestre.do_formsemestre_list(None)
     assert len(sems)
     sem_evals = []