diff --git a/ci/licenses_golden/tool_signature b/ci/licenses_golden/tool_signature
index 3a4c9641cf44a..97eff8f2a2a7c 100644
--- a/ci/licenses_golden/tool_signature
+++ b/ci/licenses_golden/tool_signature
@@ -1,2 +1,2 @@
-Signature: d63f7a9bbfe816cff5a335245a3bac58
+Signature: d165688a88dd53153d8e32bd26d3fa6d
 
diff --git a/tools/licenses/lib/main.dart b/tools/licenses/lib/main.dart
index a2864c46ff45b..7b8bf8671f0de 100644
--- a/tools/licenses/lib/main.dart
+++ b/tools/licenses/lib/main.dart
@@ -2016,7 +2016,8 @@ class _RepositoryDartThirdPartyDirectory extends _RepositoryGenericThirdPartyDir
 
   @override
   bool shouldRecurse(fs.IoNode entry) {
-    return entry.name != 'drt_resources' // test materials
+    return entry.name != 'devtools' // not linked in
+        && entry.name != 'drt_resources' // test materials
         && entry.name != 'firefox_jsshell' // testing tool for dart2js
         && entry.name != 'd8' // testing tool for dart2js
         && entry.name != 'pkg'