diff --git a/matlab/TCV_IMAS/test_tcv_get_ids.m b/matlab/TCV_IMAS/test_tcv_get_ids.m
index 5d0a24b7c7057103371930b6b547c16614858167..bff81d9c749128d3067b7f1d16be8513749e429c 100644
--- a/matlab/TCV_IMAS/test_tcv_get_ids.m
+++ b/matlab/TCV_IMAS/test_tcv_get_ids.m
@@ -9,7 +9,7 @@ classdef (SharedTestFixtures={...
   
   methods(Test,TestTags = {'IMAS'})
     function test_tcv2ids(testCase,shot,ids_name)
-      ids = tcv2ids(shot,ids_name);
+      ids = tcv2ids(shot,'ids_name',{ids_name});
       testCase.assertTrue(~isempty(ids))
     end
   end