diff --git a/taskcluster/taskgraph/util/perfile.py b/taskcluster/taskgraph/util/perfile.py
index 0e8fa0fadf1a..a19c8247bf1a 100644
--- a/taskcluster/taskgraph/util/perfile.py
+++ b/taskcluster/taskgraph/util/perfile.py
@@ -36,9 +36,9 @@ def perfile_number_of_chunks(try_task_config, head_repository, head_rev, type):
         file_patterns = ['**/test_*',
                          '**/browser_*',
                          '**/crashtest*/**',
-                         'js/src/test/test/**',
-                         'js/src/test/non262/**',
-                         'js/src/test/test262/**']
+                         'js/src/tests/test/**',
+                         'js/src/tests/non262/**',
+                         'js/src/tests/test262/**']
     else:
         # Returning 0 means no tests to run, this captures non test-verify tasks
         return 1
@@ -67,6 +67,8 @@ def perfile_number_of_chunks(try_task_config, head_repository, head_rev, type):
             # TODO: consider running tests if a manifest changes
             if path.endswith('.list') or path.endswith('.ini'):
                 continue
+            if path.endswith('^headers^'):
+                continue
 
             if mozpackmatch(path, pattern):
                 gpu = False