--- a/taskcluster/taskgraph/transforms/tests.py
+++ b/taskcluster/taskgraph/transforms/tests.py
@@ -595,20 +595,21 @@ def remove_linux_pgo_try_talos(config, t
             and test['suite'] == 'talos'
             and config.params['project'] == 'try'
         )
     for test in filter(predicate, tests):
         yield test
 
 
 @transforms.add
-def set_mochitest_test_type(config, tests):
+def set_test_type(config, tests):
     for test in tests:
-        if 'mochitest' in test['suite']:
-            test.setdefault('tags', {})['test-type'] = 'mochitest'
+        for test_type in ['mochitest', 'reftest']:
+            if test_type in test['suite'] and 'web-platform' not in test['suite']:
+                test.setdefault('tags', {})['test-type'] = test_type
         yield test
 
 
 @transforms.add
 def make_job_description(config, tests):
     """Convert *test* descriptions to *job* descriptions (input to
     taskgraph.transforms.job)"""