diff --git a/testing/buildbot/chromium.win.json b/testing/buildbot/chromium.win.json
index 7bb80b69ac8ec5..b44eaff6338ca9 100644
--- a/testing/buildbot/chromium.win.json
+++ b/testing/buildbot/chromium.win.json
@@ -474,6 +474,12 @@
         },
         "test": "gfx_unittests"
       },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
+        "test": "gn_unittests"
+      },
       {
         "swarming": {
           "can_use_on_swarming_builders": true
@@ -912,6 +918,12 @@
         },
         "test": "gfx_unittests"
       },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
+        "test": "gn_unittests"
+      },
       {
         "swarming": {
           "can_use_on_swarming_builders": true
@@ -1269,6 +1281,12 @@
         },
         "test": "gcm_unit_tests"
       },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
+        "test": "gn_unittests"
+      },
       {
         "swarming": {
           "can_use_on_swarming_builders": true