diff --git a/Trajectories/Tests/tests.json b/Trajectories/Tests/tests.json
index f091ba8dcb9e94878903eaadbaf6efee96866cdc..9c009063e301707b9cae21bd10b61c0c89478964 100644
--- a/Trajectories/Tests/tests.json
+++ b/Trajectories/Tests/tests.json
@@ -70,6 +70,18 @@
             "timings.txt"
 	]
     },
+    "Cost_function_no_debug":
+    {
+	"description": "Like Greece_cost_function but without option --debug.",
+	"command":
+	[
+            "$src_dir/Trajectories/cost_function.py",
+	    "$tests_old_dir/Greece/SHPC", "Anticyclones",
+            "$tests_old_dir/Greece_segments/segments.graphml",
+            "segments_cost_functions.graphml"
+	],
+	"exclude_cmp": ["timings.txt"]
+    },
     "Trajectories": {
 	"command": [
             "$src_dir/Trajectories/trajectories.py",