--- a/tools/tryselect/tasks.py
+++ b/tools/tryselect/tasks.py
@@ -57,17 +57,17 @@ def generate_tasks(params=None, full=Fal
         with open(cache, 'r') as fh:
             return fh.read().splitlines()
 
     if not os.path.isdir(cache_dir):
         os.makedirs(cache_dir)
 
     print("Task configuration changed, generating {}".format(attr.replace('_', ' ')))
     try:
-        params = load_parameters_file(params)
+        params = load_parameters_file(params, strict=False)
         params.check()
     except ParameterMismatch as e:
         print(PARAMETER_MISMATCH.format(e.args[0]))
         sys.exit(1)
 
     cwd = os.getcwd()
     os.chdir(build.topsrcdir)