diff --git a/recipes/recipe_modules/bot_update/examples/full.expected/origin_master.json b/recipes/recipe_modules/bot_update/examples/full.expected/origin_master.json
new file mode 100644
index 0000000..f948f00
--- /dev/null
+++ b/recipes/recipe_modules/bot_update/examples/full.expected/origin_master.json
@@ -0,0 +1,117 @@
+[
+  {
+    "cmd": [
+      "python",
+      "-u",
+      "RECIPE_MODULE[depot_tools::bot_update]/resources/bot_update.py",
+      "--spec-path",
+      "cache_dir = '[CACHE]/git'\nsolutions = [{'deps_file': '.DEPS.git', 'managed': True, 'name': 'src', 'url': 'https://chromium.googlesource.com/chromium/src.git'}]",
+      "--revision_mapping_file",
+      "{\"got_angle_revision\": \"src/third_party/angle\", \"got_cr_revision\": \"src\", \"got_revision\": \"src\", \"got_v8_revision\": \"src/v8\"}",
+      "--git-cache-dir",
+      "[CACHE]/git",
+      "--cleanup-dir",
+      "[CLEANUP]/bot_update",
+      "--output_json",
+      "/path/to/tmp/json",
+      "--revision",
+      "src@origin/master",
+      "--refs",
+      "refs/heads/master",
+      "--disable-syntax-validation"
+    ],
+    "env": {
+      "GIT_HTTP_LOW_SPEED_LIMIT": "102400",
+      "GIT_HTTP_LOW_SPEED_TIME": "300"
+    },
+    "env_suffixes": {
+      "DEPOT_TOOLS_UPDATE": [
+        "0"
+      ],
+      "PATH": [
+        "RECIPE_REPO[depot_tools]"
+      ]
+    },
+    "infra_step": true,
+    "name": "bot_update (without patch)",
+    "~followup_annotations": [
+      "@@@STEP_TEXT@Some step text@@@",
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"did_run\": true, @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"fixed_revisions\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@    \"src\": \"origin/master\"@@@",
+      "@@@STEP_LOG_LINE@json.output@  }, @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"manifest\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@    \"src\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"repository\": \"https://fake.org/src.git\", @@@",
+      "@@@STEP_LOG_LINE@json.output@      \"revision\": \"f0a10c4a2b377efb06228445fd0af9286b8a8493\"@@@",
+      "@@@STEP_LOG_LINE@json.output@    }, @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"src/third_party/angle\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"repository\": \"https://fake.org/src/third_party/angle.git\", @@@",
+      "@@@STEP_LOG_LINE@json.output@      \"revision\": \"fac9503c46405f77757b9a728eb85b8d7bc6080c\"@@@",
+      "@@@STEP_LOG_LINE@json.output@    }, @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"src/v8\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"repository\": \"https://fake.org/src/v8.git\", @@@",
+      "@@@STEP_LOG_LINE@json.output@      \"revision\": \"801ada225ddc271c132c3a35f03975671d43e399\"@@@",
+      "@@@STEP_LOG_LINE@json.output@    }@@@",
+      "@@@STEP_LOG_LINE@json.output@  }, @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"patch_failure\": false, @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"patch_root\": \"src\", @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"properties\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@    \"got_angle_revision\": \"fac9503c46405f77757b9a728eb85b8d7bc6080c\", @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"got_angle_revision_cp\": \"refs/heads/master@{#297276}\", @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"got_cr_revision\": \"f0a10c4a2b377efb06228445fd0af9286b8a8493\", @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"got_cr_revision_cp\": \"refs/heads/master@{#170242}\", @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"got_revision\": \"f0a10c4a2b377efb06228445fd0af9286b8a8493\", @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"got_revision_cp\": \"refs/heads/master@{#170242}\", @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"got_v8_revision\": \"801ada225ddc271c132c3a35f03975671d43e399\", @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"got_v8_revision_cp\": \"refs/heads/master@{#43426}\"@@@",
+      "@@@STEP_LOG_LINE@json.output@  }, @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"root\": \"src\", @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"source_manifest\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@    \"directories\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"src\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@        \"git_checkout\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@          \"repo_url\": \"https://fake.org/src.git\", @@@",
+      "@@@STEP_LOG_LINE@json.output@          \"revision\": \"f0a10c4a2b377efb06228445fd0af9286b8a8493\"@@@",
+      "@@@STEP_LOG_LINE@json.output@        }@@@",
+      "@@@STEP_LOG_LINE@json.output@      }, @@@",
+      "@@@STEP_LOG_LINE@json.output@      \"src/third_party/angle\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@        \"git_checkout\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@          \"repo_url\": \"https://fake.org/src/third_party/angle.git\", @@@",
+      "@@@STEP_LOG_LINE@json.output@          \"revision\": \"fac9503c46405f77757b9a728eb85b8d7bc6080c\"@@@",
+      "@@@STEP_LOG_LINE@json.output@        }@@@",
+      "@@@STEP_LOG_LINE@json.output@      }, @@@",
+      "@@@STEP_LOG_LINE@json.output@      \"src/v8\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@        \"git_checkout\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@          \"repo_url\": \"https://fake.org/src/v8.git\", @@@",
+      "@@@STEP_LOG_LINE@json.output@          \"revision\": \"801ada225ddc271c132c3a35f03975671d43e399\"@@@",
+      "@@@STEP_LOG_LINE@json.output@        }@@@",
+      "@@@STEP_LOG_LINE@json.output@      }@@@",
+      "@@@STEP_LOG_LINE@json.output@    }, @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"version\": 0@@@",
+      "@@@STEP_LOG_LINE@json.output@  }, @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"step_text\": \"Some step text\"@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@",
+      "@@@SET_BUILD_PROPERTY@got_angle_revision@\"fac9503c46405f77757b9a728eb85b8d7bc6080c\"@@@",
+      "@@@SET_BUILD_PROPERTY@got_angle_revision_cp@\"refs/heads/master@{#297276}\"@@@",
+      "@@@SET_BUILD_PROPERTY@got_cr_revision@\"f0a10c4a2b377efb06228445fd0af9286b8a8493\"@@@",
+      "@@@SET_BUILD_PROPERTY@got_cr_revision_cp@\"refs/heads/master@{#170242}\"@@@",
+      "@@@SET_BUILD_PROPERTY@got_revision@\"f0a10c4a2b377efb06228445fd0af9286b8a8493\"@@@",
+      "@@@SET_BUILD_PROPERTY@got_revision_cp@\"refs/heads/master@{#170242}\"@@@",
+      "@@@SET_BUILD_PROPERTY@got_v8_revision@\"801ada225ddc271c132c3a35f03975671d43e399\"@@@",
+      "@@@SET_BUILD_PROPERTY@got_v8_revision_cp@\"refs/heads/master@{#43426}\"@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "set_output_gitiles_commit",
+    "~followup_annotations": [
+      "@@@SET_BUILD_PROPERTY@$recipe_engine/buildbucket/output_gitiles_commit@{\"host\": \"fake.org\", \"id\": \"f0a10c4a2b377efb06228445fd0af9286b8a8493\", \"position\": 170242, \"project\": \"src\", \"ref\": \"refs/heads/master\"}@@@"
+    ]
+  },
+  {
+    "name": "$result"
+  }
+]
\ No newline at end of file
diff --git a/recipes/recipe_modules/bot_update/examples/full.py b/recipes/recipe_modules/bot_update/examples/full.py
index 76cae93..4a1ce92 100644
--- a/recipes/recipe_modules/bot_update/examples/full.py
+++ b/recipes/recipe_modules/bot_update/examples/full.py
@@ -232,6 +232,10 @@
           ],
       )
   )
+  yield (
+      api.test('origin_master') +
+      ci_build(revision='origin/master')
+  )
 
   yield (
       api.test('add_blamelists') +
diff --git a/recipes/recipe_modules/bot_update/test_api.py b/recipes/recipe_modules/bot_update/test_api.py
index 8bca22c..7f44a0b 100644
--- a/recipes/recipe_modules/bot_update/test_api.py
+++ b/recipes/recipe_modules/bot_update/test_api.py
@@ -26,6 +26,8 @@
       for project_name, revision in fixed_revisions.items():
         if revision == 'HEAD':
           revision = self.gen_revision(project_name)
+        elif revision.startswith('refs/') or revision.startswith('origin/'):
+          revision = self.gen_revision('{}@{}'.format(project_name, revision))
         revisions[project_name] = revision
 
     properties = {